Pull a nineties Nike ACG fleece off a rack and the first thing you notice is the colour. Not navy, not grey, not a sensible forest green, but teal against purple, or mustard against slate, or a hard orange zip pull on a black body. It looks like it was designed by someone who had spent a long time on a mountain and decided the trail could use more personality. In a way, that is exactly what happened.
All Conditions Gear, or ACG, was Nike's outdoor line, and vintage pieces from its early years have become some of the most interesting things the brand ever made. They sit somewhere between serious outdoor clothing and streetwear: fleece pullovers, waterproof shells, insulated jackets, hiking trousers and the occasional strange hybrid. This guide looks at where ACG came from, what to look for and how to wear it in a city where most mountains are hours away.
01. Nike heads outdoors
By the late eighties Nike was already a giant in running and basketball, and it had been experimenting with hiking boots and trail shoes for several years. Toward the end of the decade, the company gathered its outdoor products under a single name, All Conditions Gear, with its own triangular logo. The idea was simple: bring Nike's design energy and athletic thinking to hiking, climbing, snow sports and anything else that happened outside a stadium.
What came out was not a copy of the established outdoor brands. Where many mountain companies of the time leaned toward earthy greens, tans and navy, ACG leaned toward colour and graphic shapes. Footwear, including rugged trail shoes in the early nineties, set the tone, and the clothing followed with fleeces, shells and outerwear that looked unlike anything else in the outdoor shop.
That mix of technical intent and playful design is what makes vintage ACG appealing. The pieces were meant to work, and many still do, but they also have a sense of humour that most outdoor clothing lacks.
02. The colourways
If there is one reason people seek out vintage ACG, it is colour. The nineties palette leaned on combinations that sound clashing on paper and look excellent in practice: teal with purple, black with bright orange, olive with burgundy, navy with lime, grey with mustard. Panels were often blocked in three or four colours, sometimes with contrasting zips, toggles and taping.
Those colours were partly practical. Bright tones help you be seen on a hillside, and contrast panels can make zips and pockets easier to find with gloves on. But they also reflected the broader sportswear mood of the decade, when bold colour blocking was everywhere from basketball warm-ups to snowboard jackets.
Fading is part of the look on many old pieces. Sun and washing soften the brighter colours, and teal can drift toward a dusty green, while purple can lighten to a grape or lavender shade. Even fading across a garment usually looks good. Uneven fading, with one sleeve or shoulder noticeably lighter, is common on outdoor gear that spent years hanging in sun or riding in car windows.
When choosing a colourway, look at the darkest panel first. A piece with a black, navy or charcoal base and brighter accents is far easier to wear than one built entirely from bright colours, because the dark panel anchors the outfit and lets the accents read as detail. If you already own a lot of black and grey, a jacket with a teal or orange main body might be the more interesting addition. If your wardrobe is full of colour, an olive or slate ACG piece with a single bright zip may suit you better.
03. Fleece: the easiest way in
ACG fleece is the most approachable part of the line and the piece most people end up wearing every day. Expect half-zip pullovers, full-zip jackets and vests, usually in a mid-weight or heavy pile with colour-blocked panels, a stand collar and sometimes a nylon yoke or pocket trim. Some have a kangaroo pocket or zip chest pocket; many have the ACG triangle embroidered or printed somewhere visible.
Fleece ages in predictable ways. The surface pills, especially at the underarms, cuffs and where bags rub. Some pilling is normal and gives the fabric a softer look. Heavy matting, where the pile has flattened and clumped into a felted surface, is harder to reverse. Hold the fleece up to the light and look at its texture across the body. Run your hand over it; it should feel springy rather than crunchy.
Also check the zip and pull, the elastic at the hem and cuffs, and any nylon trim panels, which can tear or peel away from the fleece at the seams. A good vintage ACG fleece sits beautifully under a shell or on its own over a tee, and it is one of the most comfortable pieces of outdoor clothing you can wear in the city.
Outdoor clothing was supposed to be practical and plain. ACG made it practical and loud, and that is exactly why people still go looking for it.
04. Shells and insulated jackets
For weather, ACG made waterproof and windproof shells, often with taped seams, hoods, pit zips and plenty of pockets. Some used Nike's own branded fabrics and treatments, and some higher-end jackets used well-known waterproof membranes. Insulated jackets added synthetic fill and were aimed at snow and cold-weather use.
Shells need careful inspection. Waterproof coatings on older nylon can break down over time, peeling or flaking on the inside of the jacket and sometimes leaving a sticky or powdery surface. Turn the jacket inside out and check the lining, especially at the shoulders and back. Seam tape can lift or peel too. A shell with failing coating may still be wearable as a windbreaker, but it will not keep out rain the way it once did.
Insulated pieces deserve the same squeeze test you would give any puffer. Feel for even fill, look for thin patches and check that the shell is not torn. Bulky ACG jackets from the nineties tend to have generous, boxy cuts, which makes them comfortable over layers but large on smaller frames.
05. Reading tags and clues
ACG pieces usually carry the triangular ACG logo, sometimes with a Nike swoosh nearby, and sometimes as the dominant branding. The inside labels follow the same broad patterns as other Nike clothing of the era, which collectors use as a rough guide to age along with country of manufacture and care-label wording. Treat all of these as clues rather than proof.
Keep in mind that ACG has been revived more than once. In the mid-2010s, Nike relaunched the line with a much more technical, urban design approach, and later versions returned to bright outdoor colours inspired by the original period. Some of those newer pieces deliberately echo nineties designs. If you specifically want an older piece, look closely at fabric weight, zip hardware, tag style and the overall cut, which tends to be boxier and longer in the sleeve on older examples.
Many people are happy with either. A newer ACG fleece in a great colour can be just as satisfying to wear. It simply helps to know which you are holding.
06. Fit and layering
Vintage ACG was designed to be layered, so most pieces have room built in. Fleece pullovers often run roomy in the body with long sleeves, and shells are cut to fit over a fleece and base layer. When trying pieces, think about how you will actually use them.
- Fleece as a mid-layer: it should fit comfortably over a tee or thin long-sleeve without pulling across the shoulders.
- Shell as an outer layer: try it over a sweater or fleece and raise your arms to check the sleeves and hem.
- Insulated jacket: check that it closes easily over a hoodie and that the hood fits with a toque underneath.
- Trousers: ACG hiking and convertible pants often have a relaxed leg and adjustable hems; check the waist and inseam carefully.
If you are smaller or prefer a neater look, sizing down on ACG outerwear is often fine. If you want the full nineties shape, take your usual size and let it hang loose.
07. Wearing ACG in the city
The trick with ACG in everyday life is to let one piece carry the colour. A teal and purple fleece with black trousers, a plain tee and dark trainers is bold but balanced. A loud shell over a grey hoodie and light denim looks intentional. Two colour-blocked ACG pieces together can work for a deliberate outdoor look, but it is a lot for a commute.
ACG also pairs well with workwear and plain basics. A bright fleece under a canvas chore coat, or a black ACG shell over a heavyweight crewneck and cargo trousers, gives a practical, grounded feel. The colours pop more when the rest of the outfit is muted.
For Toronto, ACG is genuinely useful. A fleece pullover handles cool autumn days, a shell keeps off spring rain and wind off the lake, and a heavier insulated piece can stand in for a winter coat with a good layer underneath. Few vintage clothes are both this practical and this cheerful.
08. Taking care of technical gear
Wash fleece inside out on a cool, gentle cycle, avoid fabric softener and dry it on low or flat to keep the pile from matting. For shells, follow the care label if it is still there; otherwise use a gentle technical-fabric wash and air-dry. Heat can damage older coatings and seam tape, so keep both away from hot dryers and radiators.
A well-kept vintage Nike ACG piece is one of the more satisfying finds in sportswear: built for the outdoors, designed with a sense of fun and still capable of doing its job decades later. Pick the colour that makes you smile, check the zips and coatings, and wear it outside, which is where it was always meant to be.
