ACG stands for All Conditions Gear, Nike’s outdoor-performance brand. Officially launched in 1989, ACG brings together footwear, technical apparel, and accessories designed for activities such as trail running, hiking, and outdoor exploration.
In February 2026, Nike reintroduced ACG as a dedicated outdoor-performance brand. The move sharpened its focus on athletes, brought Nike Trail into the ACG strategy, and made three core use cases clearer: run, hike, and explore.
That does not mean every Nike ACG product is waterproof, uses GORE-TEX, or is appropriate for every trail. All Conditions Gear is the brand name and philosophy; the actual capabilities depend on the specifications of each shoe, garment, or piece of equipment.
What Does ACG Mean at Nike?
ACG stands for All Conditions Gear. The name suggests gear designed for a wide range of outdoor conditions, but it should not be interpreted as a guarantee that every ACG product works in every climate, temperature, terrain, or weather scenario.
In practice, the name communicates an outdoor design philosophy built around activity, environment, and conditions. A rain shell, a trail-running shoe, and a casual archive-inspired sneaker can all carry the ACG name while providing very different levels of protection and performance.
Nike now describes ACG as a dedicated outdoor-performance brand. It remains part of Nike, but in 2026 it received a clearer identity, product strategy, athlete roster, and outdoor mission. Calling it a brand within Nike therefore fits Nike’s current positioning better than treating it as an occasional footwear collection.
What Is Nike ACG Today?
Today, ACG centers on three main outdoor areas: trail running, hiking, and exploration. Its lineup includes performance footwear, activity-specific apparel, and accessories. Nike also ties current product development to athlete feedback and testing for the activities the products are intended to support.
That makes the current ACG strategy broader and more technical than the idea of “rugged sneakers for city wear.” Archive models and retro releases still matter to sneaker culture, but Nike’s 2026 strategy clearly puts the outdoor athlete back at the center of ACG.
- Run: products for trail running, racing, ultradistance events, and routes that transition between road and natural terrain.
- Hike: footwear and gear for outdoor hiking, selected according to distance, terrain, and conditions.
- Explore: products for outdoor exploration, including new concepts and reworked silhouettes connected to the ACG archive.
These categories make shopping easier, but they do not make the products interchangeable. An ACG shoe built for running is not automatically ideal for hiking, while an archive-inspired lifestyle release should not be assumed to function like technical outdoor equipment.
How Did Nike ACG Begin?
Nike ACG officially launched in 1989, but its roots go back more than a decade. A 2026 timeline from the Department of Nike Archives shows how work with climbers, lightweight running footwear, early Nike Hiking products, and trail-running development gradually led to the creation of All Conditions Gear.
1978: The K2 Expedition and ACG’s Early Roots
In 1978, Nike supplied LDV—Long Distance Vector—running shoes to members of an American expedition to K2. Climbers Rick Ridgeway and John Roskelley used the lightweight shoes during the long approach to base camp at a time when stiff leather boots were still common in mountaineering.
The LDVs were running shoes, not mountaineering boots. They finished the journey heavily worn and had to be repaired along the way. After returning, the climbers sent the used pairs back to Nike with feedback that included requests for a tougher upper and more rugged outsole without sacrificing lightweight flexibility.
That episode influenced Nike’s early outdoor thinking, but ACG was not founded in 1978. The K2 expedition is best understood as one of the historical roots that helped shape Nike’s later outdoor category.
1981 and 1982: Lava Dome, Magma, and Approach
In the early 1980s, Nike began combining knowledge from running footwear with construction better suited to rough outdoor terrain. Lava Dome, Magma, and Approach were part of those early efforts.
Lava Dome, released before ACG officially existed, became an important example of Nike’s lightweight hiking approach. It is more accurate to describe it as a precursor to Nike’s outdoor category than as an original ACG release from 1989.
The Department of Nike Archives documents the Approach, first released in 1982, as Nike’s first shoe with a GORE-TEX lining. It paired a Waffle outsole with a leather-and-Cordura upper. That specification belongs to the Approach; it does not prove that all later Nike outdoor footwear used GORE-TEX.
1984: Nike Escape and the Move Into Trail Running
In 1984, Nike introduced the Escape, designed by Mark Parker. According to Nike’s historical documentation, it marked the company’s formal move into trail running.
That point matters because trail running is not a recent add-on to ACG. Nike was already applying running knowledge to outdoor terrain years before the ACG name became official.
1989: All Conditions Gear Officially Launches
In 1987, an internal Nike team began organizing scattered hiking, trail-running, and outdoor-apparel projects into a more coherent strategy. Under Kirk Richardson’s leadership, that plan became an integrated footwear-and-apparel business for people who ran, hiked, climbed, and explored outside.
The first official ACG collection launched in the second half of 1989. Products included the Air Wildwood, Lava High, and apparel using materials such as fleece and specific GORE-TEX constructions.
The timeline is therefore straightforward: 1978 represents an important root; the early 1980s brought Nike Hiking precursors and the Escape; and 1989 is the official launch year of Nike ACG.
For the broader company context, see our guide to the history of Nike.
Where Did the Name All Conditions Gear Come From?
The name was not created simply as a generic translation of Nike’s outdoor ambitions. According to the Department of Nike Archives, Nike Running had already used the phrase “All Conditions Gear” for a small line of year-round performance apparel designed for changing weather.
When the outdoor team needed one identity that could unite footwear and apparel, it recognized that the phrase matched its own goal: equipment for movement across changing terrain and environmental conditions. The name carried over into the outdoor business that became ACG.
That origin helps explain why ACG has always involved both apparel and footwear. The acronym does not identify one sneaker technology.
What Changed for Nike ACG in 2025 and 2026?
ACG has not remained unchanged since 1989. Across the decades, technical products, archive revivals, creative-direction shifts, and the urban adoption of ACG silhouettes all changed how the brand was perceived. At different times, ACG leaned more heavily toward performance, lifestyle, or design culture.
The most recent shift is a concrete recommitment to outdoor performance. In August 2025, Nike introduced the All Conditions Racing Department, an elite trail-running athlete group involved in testing prototypes and helping shape future trail products.
In February 2026, Nike formally announced the reintroduction of ACG as a dedicated outdoor-performance brand. In April, Nike further explained its product organization by activity and terrain through Run, Hike, and Explore.
“Reintroduction” does not mean ACG had disappeared completely before 2026. Nike continued releasing ACG products. The 2026 announcement represents a renewed strategic focus, a more concentrated identity, and a broader commitment to outdoor athletes.
Did Nike Trail Become ACG?
Yes. In Nike’s February 2026 announcement, the company said that Nike Trail would transition into ACG. The move combines Nike’s running heritage with the All Conditions Gear outdoor identity.
That helps explain why names previously associated with Nike Trail now appear inside the ACG strategy. It is more accurate to say Nike Trail transitioned into ACG than simply to say it “ended.” Products, expertise, and trail-running development were absorbed into the new structure.
It also makes one point especially clear: ACG and performance are not opposites. The current ACG lineup includes footwear specifically designed for trail training and competition.
What Are the Typical Features of a Nike ACG Product?
There is no technical checklist that applies to every ACG product. The brand includes trail-running shoes, hiking footwear, archive-inspired releases, weather-protection layers, insulation, and accessories. Each item responds to a different mix of activity, environment, and conditions.
Depending on the specific trail-running or hiking model, a product page may mention:
- outsole geometry and lug patterns tuned for the terrain;
- specific rubber compounds;
- cushioning selected for distance and activity;
- rock-protection elements or plates;
- uppers designed for drainage, ventilation, or reinforcement;
- weather protection such as water-resistant or waterproof constructions;
- stability features;
- materials selected for low weight, durability, insulation, or mobility.
The presence of one of these features on one product should never be generalized to the entire brand. If you want to distinguish the upper, midsole, outsole, heel counter, and other parts discussed here, see our sneaker anatomy guide.
Is Nike ACG Waterproof?
Not necessarily. The ACG name does not automatically make a product waterproof. Look for the word “waterproof,” a confirmed waterproof membrane, or another construction explicitly designed to block water on the exact product page.
Water-resistant generally describes limited protection against moisture such as splashes or light rain. Waterproof indicates a stronger barrier within the conditions and limitations stated by the manufacturer. Those terms are not interchangeable.
A water-repellent treatment on an outer fabric also does not automatically make the full garment or shoe waterproof. Seams, membranes, openings, construction, wear, and maintenance all affect real-world protection.
For rain, snow, or wet crossings, check the exact product specifications and the demands of the route. The words All Conditions Gear do not replace activity-specific equipment or outdoor safety planning.
Does Nike ACG Use GORE-TEX?
Some ACG products use GORE-TEX; many others do not. The relationship goes back decades: Nike documents the Approach, an ACG precursor, as its first shoe with a GORE-TEX lining, and the inaugural 1989 ACG collection included specific outerwear built with GORE-TEX.
Later products such as certain Mountain Fly GORE-TEX versions, Air Nasu GORE-TEX releases, and specific ACG jackets also used the technology. That still does not justify the blanket statement that “ACG has GORE-TEX.”
When shopping, confirm whether the exact model name or style-code specification mentions GORE-TEX. A standard Mountain Fly and a Mountain Fly GORE-TEX, for example, should not be assumed to offer identical weather protection.
Nike ACG Models That Help Explain the Brand’s History
A random list of shoes does not explain ACG’s evolution. The models below represent distinct moments: early precursors, the official launch, cultural consolidation, modern outdoor innovation, and the current return to performance.
Lava Dome: A Precursor, Not an Original ACG Release
The Lava Dome appeared in the early 1980s as one of Nike’s early lightweight hiking shoes. Its importance lies in helping build the outdoor category that came before ACG. Because it predates 1989, it should not be described as an original ACG launch model.
Air Wildwood: Part of the Official 1989 Debut
The Air Wildwood was part of ACG’s official 1989 launch. Evolving from ideas associated with the Escape and Pegasus, it mixed Nike running DNA with details intended for outdoor use.
Nike’s documented inaugural version featured a micro-perforated synthetic upper, a sawtooth Waffle outsole, variable-width lacing, a polyurethane foot frame, and encapsulated heel Air-Sole cushioning.
In this specific case, it is accurate to connect the model with Nike Air technology. That does not mean Nike Air is mandatory across all ACG products.
Air Mowabb: The Icon of ACG’s Early Era
Released in 1991, the Air Mowabb became one of the most recognizable silhouettes in ACG history. Designed by Tinker Hatfield, the model is closely associated with the landscapes around Moab, Utah, and shared fit and design ideas with Nike running and outdoor footwear of the period.
Its historical importance comes from the way it brought outdoor construction, running knowledge, and expressive design together. Later retro releases introduced the Air Mowabb to new generations and strengthened its status as both an outdoor design landmark and a collectible sneaker.
Mountain Fly: Running-Inspired Technology in Modern ACG
The ACG Mountain Fly belongs to a much later phase and was not part of the brand’s founding era. The family became notable for applying ideas associated with Nike performance running to a modern outdoor shoe.
The original Mountain Fly GORE-TEX, for example, was introduced with Nike React foam, a carbon-fiber plate, a traction-focused rubber outsole, and a GORE-TEX membrane. Those specifications apply to that version and should not be generalized to every later Mountain Fly.
ACG Ultrafly: The Current Trail-Racing Era
The ACG Ultrafly represents the new high-performance trail-running direction. Announced for 2026, it was developed as a trail-racing shoe using ZoomX foam, a ZoomX sockliner, a split carbon Flyplate, and a Vibram Lightbase outsole.
Nike also emphasizes an upper designed for ventilation and drainage. That distinction matters: drainage helps water leave the shoe more easily, but it does not make the Ultrafly waterproof.
The model was developed with athlete input through repeated testing. That establishes its intended performance role, but it does not replace independent evaluation or guarantee that it is the right shoe for every runner or trail.
ACG Zegama: Maximum Cushioning for Trail Running
The ACG Zegama introduced for 2026 continues a name that previously lived within Nike Trail. The current version combines ZoomX and Cushlon 3.0, a Vibram Megagrip outsole, forefoot rock protection, and a trail-oriented last and upper.
Nike positions the Zegama as a maximum-cushioning option for long-distance trail running and demanding terrain. Those characteristics apply to the Zegama itself and should not be extended to every ACG shoe.
The move of Zegama into ACG is a concrete example of Nike Trail transitioning into the new ACG structure.
ACG, Sneaker Culture, and Outdoor Fashion
Outdoor function comes first in ACG’s history, but its cultural influence is real. Silhouettes such as the Air Mowabb and Air Wildwood used color, volume, and utilitarian details that stood apart from more conventional performance footwear.
Over time, retro releases helped older outdoor models become casual sneakers and collectibles. Toggle cords, rugged materials, substantial outsoles, pockets, technical fabrics, and climbing-inspired details also fit naturally into the broader visual language of outdoor fashion.
The rise of gorpcore—wearing outdoor-inspired clothing and gear in everyday urban settings—expanded cultural interest in this aesthetic. But gorpcore does not fully explain ACG’s relevance, and it certainly does not explain its origins.
The 2026 reintroduction is a concrete sports and business decision built around trail running, hiking, technical product, and athlete development. Fashion is a parallel cultural context, not the sole reason ACG exists today.
For more terminology connected to sneaker culture and adjacent fashion communities, see the Sneakerhead Dictionary.
Is Nike ACG Only for Trails?
No. ACG includes trail running, hiking, outdoor exploration, technical apparel, accessories, and reinterpretations of historical models. At the same time, the presence of casual products should not reduce the brand to an outdoor aesthetic.
Some ACG products are racing shoes; others are designed for hiking; certain garments provide specific weather protection; and some archive silhouettes are now sought mainly for their design or historical significance.
Is Nike ACG Good for Running?
Some models are specifically built for trail running. ACG Ultrafly, ACG Zegama, and ACG Pegasus Trail are current examples aimed at different kinds of off-road running.
That does not mean every sneaker carrying an ACG logo is suitable for running. An Air Mowabb, a Mountain Fly, and a modern trail-racing shoe have different constructions, weights, geometries, and purposes.
Is Nike ACG Good for Hiking?
Yes, there are ACG products designed specifically for hiking. In 2026, Nike made Hike an explicit product category alongside Run and Explore.
Before choosing a pair, consider distance, elevation gain, terrain, carried load, weather, and the kind of support or protection you need. A lightweight hiking shoe does not automatically replace a boot or specialized equipment for technical mountaineering.
Can You Wear Nike ACG Every Day?
Yes, as long as the specific model fits your routine and feels comfortable for how you use it. ACG silhouettes have been worn casually for decades, and many retro releases are purchased more for design than for outdoor performance.
Highly technical products can involve tradeoffs in everyday city use. Waterproof membranes may ventilate differently from open mesh uppers, aggressive lugs can be unnecessary on pavement, and rugged constructions may feel heavier than a conventional lifestyle sneaker.
Those effects vary by product. The ACG logo alone cannot tell you whether a shoe will feel comfortable for a particular person.
How to Choose a Nike ACG Product
Start with the activity—not the appearance or the acronym. Check:
- Use: trail running, hiking, exploration, or casual wear.
- Terrain: packed trail, mud, gravel, rock, snow, or mixed surfaces.
- Weather protection: confirm whether the product is breathable, water-resistant, or genuinely waterproof.
- Traction: check outsole rubber and lug geometry for the terrain you expect.
- Cushioning and protection: match the construction to distance, pace, impact, and carried load.
- Fit: leave appropriate room for the activity, socks, and expected foot swelling.
- Weight: lighter is not always better if it removes protection you actually need.
For remote or technically demanding activities, footwear is only one part of the system. Weather awareness, navigation, clothing, water, nutrition, and emergency planning also matter.
Is Nike ACG Worth Buying?
Nike ACG can be worth buying when the specific product matches the activity you actually plan to do. For trail running, choose a model classified for running. For hiking, compare products designed for the terrain. For wet weather, verify the exact weather-protection construction instead of assuming the ACG name is enough.
The acronym does not guarantee superior durability, universal comfort, waterproofing, or safety in every environment. The best buying criterion is to compare the exact model specifications with the conditions in which you will use it.
Nike ACG FAQ
What Does ACG Mean at Nike?
ACG stands for All Conditions Gear. It is Nike’s outdoor-performance brand, currently focused on trail running, hiking, and exploration.
When Was Nike ACG Created?
Nike ACG officially launched in 1989. The 1978 K2 expedition and Nike Hiking products from the early 1980s are part of its historical roots, but they predate the formal creation of ACG.
Who Created Nike ACG?
ACG should not be credited to one person. A Nike team organized the company’s outdoor projects, with figures such as Tom Clarke involved in the strategy and Kirk Richardson leading the emerging category. Earlier climbers, product managers, designers, and Nike Running teams also contributed to the ideas that preceded ACG.
Is ACG a Brand or a Nike Line?
Historically, ACG has often been described as a Nike line or category. In its 2026 communications, Nike explicitly describes ACG as a dedicated outdoor-performance brand.
Did Nike Trail Become ACG?
Nike announced in February 2026 that Nike Trail would transition into ACG. That brought trail-running products and expertise into the renewed All Conditions Gear structure.
Are All Nike ACG Shoes Waterproof?
No. Treat a shoe as waterproof only when the exact product specifications confirm a waterproof membrane or construction. Water-resistant and waterproof are not the same thing.
Does Every Nike ACG Product Use GORE-TEX?
No. Some ACG footwear and apparel use GORE-TEX, while many other products use different materials and serve different purposes. The technology needs to be confirmed on the exact product page.
What Is the Most Famous Nike ACG Shoe?
The Air Mowabb is one of the most historically recognizable ACG silhouettes. The Air Wildwood is especially important because it was part of the official 1989 launch.
What Is the Difference Between Nike ACG and Nike Running?
Nike Running serves running broadly, including road running. ACG is focused on outdoor performance and includes trail running, hiking, and exploration. The two areas share technologies and knowledge, especially now that Nike Trail has transitioned into ACG.
Is Nike ACG Just Gorpcore Fashion?
No. ACG influences outdoor fashion and overlaps culturally with gorpcore, but it began as a functional outdoor category and was reintroduced in 2026 with an explicit performance focus. Urban fashion is one dimension of the brand, not its entire purpose.
Sources and Further Reading
The timeline and 2026 updates in this article were verified primarily through the Department of Nike Archives and Nike Newsroom, including The Birth of ACG: The Summit that Launched a Legacy, Nike Reintroduces ACG, Ready for the Wild: How ACG Designs for All Conditions, and the All Conditions Racing Department announcement.
To keep exploring Nike’s evolution and the cultural history around its products, visit our history of Nike and Sneaker History & Culture sections.