90% matchMammut
Swiss alpinist making both hardware and apparel
What changes: Broader European retail presence and higher price ceiling
Brand profile
Salt Lake City maker of climbing and ski gear — Camalot cams, harnesses, headlamps, poles and technical apparel — owned by Clarus Corporation.
26 brands like Black Diamond like Mammut, RAB, Mountain Hardwear →

Black Diamond Equipment designs climbing, skiing and mountain gear from Salt Lake City: Camalot cams, carabiners, harnesses, ice tools, Distance and Storm headlamps, trekking poles, touring skis and bindings, plus a technical apparel line. It has been owned by publicly traded Clarus Corporation since 2010 and is the core of Clarus's Outdoor segment. Recent direction focuses on cutting non-core styles and rebuilding apparel, which grew 29% year-over-year in Q3 2025. Clarus sold sister brand PIEPS in July 2025 and, in May 2026, opened a strategic review that could lead to a sale.
Overall fit
slightly small
Black Diamond apparel is typically described as a technical, climber-athletic fit: trim through the torso with long sleeves and hem, so broader or non-athletic builds often end up sizing up while slim wearers find it true to size.
Tip: If you are between sizes or want to layer, take the larger size - most BD apparel is cut athletically slim.
Medium confidence · based on 18 sources
By category
| Category | Runs | Shape | Size advice |
|---|---|---|---|
| Hoodies & sweatshirts | slightly small | slim athletic layering cut (Alpine Start / Coefficient style), close through chest and arms | Size up if you want to wear anything more than a baselayer underneath. |
| Jackets | slightly small | alpine/climbing fit - trim body with articulated arms and helmet-compatible hood | Size up if you plan to layer a thick midlayer under a shell or belay piece. |
| Shirts & overshirts | slightly small | trim technical/travel shirt cut through the waist | Consider one size up if you have broad shoulders or want a relaxed drape. |
| T-shirts & graphic tees | true to size | regular to slightly athletic, not boxy | Take your normal tee size; size up only if you dislike a closer body-skimming cut. |
| Trousers & pants | true to size | climbing-oriented - some relaxed cotton-blend styles, some slim softshell styles | Order your usual waist and check the inseam option, as legs often run long. |
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
90% matchSwiss alpinist making both hardware and apparel
What changes: Broader European retail presence and higher price ceiling
85% match
80% matchUS technical alpine apparel with hardware heritage
What changes: Corporate-owned, no climbing hardware line
78% matchSeattle problem-solver gloves, gaiters and shells
What changes: Accessories-led, no hard goods
Black Diamond fits slightly small. If you are between sizes or want to layer, take the larger size - most BD apparel is cut athletically slim. Black Diamond apparel is typically described as a technical, climber-athletic fit: trim through the torso with long sleeves and hem, so broader or non-athletic builds often end up sizing up while slim wearers find it true to size.
Black Diamond apparel is typically described as a technical, climber-athletic fit: trim through the torso with long sleeves and hem, so broader or non-athletic builds often end up sizing up while slim wearers find it true to size. Overall shape: athletic climbing cut - trim through chest, shoulders and waist with articulated sleeves.
Black Diamond hoodies & sweatshirts fits slightly small. Size up if you want to wear anything more than a baselayer underneath. Shape: slim athletic layering cut (Alpine Start / Coefficient style), close through chest and arms.
Black Diamond jackets fits slightly small. Size up if you plan to layer a thick midlayer under a shell or belay piece. Shape: alpine/climbing fit - trim body with articulated arms and helmet-compatible hood.
Black Diamond shirts & overshirts fits slightly small. Consider one size up if you have broad shoulders or want a relaxed drape. Shape: trim technical/travel shirt cut through the waist.