92% matchParajumpers
Parajumpers closely matches RAB in terms of style, silhouette, fit, and materials. Both brands emphasize high-quality, technical outerwear with a focus on function and technology.
RAB
StyleGorpcore / OutdoorTechwear
Known forOutdoor & technicalJacketsOuterwear
Rab builds technical mountaineering kit: down jackets like the Microlight Alpine and Neutrino, waterproof shells, softshells, sleeping bags and expedition down suits. Scottish climber Rab Carrington started the company after hand-stitching sleeping bags in a Sheffield attic, and it now runs from Somercotes, Derbyshire under parent Equip Outdoor Technologies, which also owns Lowe Alpine. Current work centres on responsibly sourced and recycled down, repair and circularity programmes, and a five-year international growth plan launched in 2024 under CEO Richard Leedham. Positioning stays performance-led rather than lifestyle.
You might also like
92% match
90% matchArc'teryx
Both brands focus on high-performance outdoor gear designed for extreme conditions.
88% matchMountain Research
Mountain Research shares an emphasis on high-quality, technical materials, and relaxed silhouettes designed for performance in extreme conditions, similar to RAB.
How RAB fits
| Category | Runs | Shape | Length | Size advice | Confidence |
|---|---|---|---|---|---|
| T-shirts & graphic tees | slightly small | close-fitting technical tees and baselayers, cut narrow through the torso | regular to slightly long in the body | Consider one size up if you prefer a looser everyday tee, as baselayer-style cuts run snug. | low |
| Hoodies & sweatshirts | slightly small | slim, midlayer-oriented fleece and grid hoodies designed to sit under a shell | regular, with a slightly dropped hem at the back | Size up if you want a casual, relaxed hoodie fit rather than a technical midlayer. | low |
| Trousers & pants | true to size | slim to regular climbing and softshell cut with articulated knees and a fair amount of stretch | regular inseams; taller wearers sometimes report them running a touch short | Stick with your usual waist size and check inseam options if you are over about 6ft. | low |
| Jackets | slightly small | trim, athletic cut; insulated pieces like the Microlight sit close to the body while waterproof shells and 'Alpine' versions allow a bit more room | regular body length with slightly long, articulated sleeves that stay put when reaching overhead | Order your normal size for a technical next-to-midlayer fit, or size up if you want a fleece or heavier midlayer underneath. | medium |
Does RAB run big or small?
RAB fits slightly small. Take your usual size if you wear it as an outer layer over a baselayer, but size up if you plan to layer a midlayer or fleece underneath. Most people find Rab close to true to size but cut slimmer than typical US outdoor brands, so broader or layering-focused buyers commonly go up one size.
How does RAB fit?
Most people find Rab close to true to size but cut slimmer than typical US outdoor brands, so broader or layering-focused buyers commonly go up one size. Overall shape: trim, athletic European alpine cut through the chest and waist, with articulated sleeves.
How do RAB t-shirts & graphic tees fit?
RAB t-shirts & graphic tees fits slightly small. Consider one size up if you prefer a looser everyday tee, as baselayer-style cuts run snug. Shape: close-fitting technical tees and baselayers, cut narrow through the torso.
How do RAB hoodies & sweatshirts fit?
RAB hoodies & sweatshirts fits slightly small. Size up if you want a casual, relaxed hoodie fit rather than a technical midlayer. Shape: slim, midlayer-oriented fleece and grid hoodies designed to sit under a shell.
How do RAB trousers & pants fit?
RAB trousers & pants fits true to size. Stick with your usual waist size and check inseam options if you are over about 6ft. Shape: slim to regular climbing and softshell cut with articulated knees and a fair amount of stretch.
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
Not sure what size to buy?
Paste a RAB listing's measurements and compare them to something you already own.
Check fit with RABBought RAB? Share how it fit