Black Diamond Prime

1 review
5-star:   0
4-star:   0
3-star:   1
2-star:   0
1-star:   0



Very good lightweight touring boot. Comfortable for…

Rating: rated 3.5 of 5 stars
Source: bought it new
Price Paid: $475


Very good lightweight touring boot. Comfortable for wide feet.


  • High quality construction (pebax material, amazing liner)
  • Lightweight
  • Comfortable, suitable for wide feet
  • Efficient attachment system


  • Buckles can break (wire)
  • May constrict the shins when touring

I have the first version (white and grey) of these boots. Very comfortable, suitable for people with wide feet. The heel stays tightly in place. Warm too, and I love the Boa attachment system for the liners.

Good performance when skinning, sufficient articulation, although there is pressure on the shins, due to the plastic overlapping at the front. I prefer boots with a tongue like the Dynafit Zzero, because you can loosen it to gain space when skinning. The BD Prime don't have that. Works well with Dynafit bindings

Solid Vibram outer sole. The buckle wires are fragile, I broke one wire after 1.5 season. But it was also easy to fix with hay wire and eventually replace with a new wire.

Overall, I really like these boots, they are an excellent option for touring. They don't perform great when you want to charge hard in steep, difficult terrain though. For that reason, I would recommend the stiffer, 4-buckle version, i.e. the BD Quadrant, which seems to be a better compromise for a touring boot with solid downhill capacity.

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Retailers' Descriptions

Here's what other sites are saying:

Light and comfortable, especially for wide-foot skiers, the Black Diamond Prime ski boot is a nice blend of features and function. The BD Pivoting Cuff Technology accommodates 40 degrees of fore-aft motion, but when locked has a 110 flex for ski turning power. The Prime's redesigned Efficient Fit AT Light liner is an improvement of what is a great, wide ranging fit, liner. The Prime is, essentially, a 3 buckle boot that skis like a 4. Triax Pivot Frame with Flex 110, 40 degrees of touring motion and locking QuickWire cuff buckles New Efficient Fit AT Light Liner with 1:1 Boa closure system has improved fit and anti-microbial treatment Rockered, rubber outsole with integrated tech inserts 103 mm V-shaped last with secure heel pocket

- OMCgear

Sacrifice nothing when you pull on the Black Diamond Men's Prime Alpine Touring Boot before a marathon ski tour or dawn-patrol powder mission. This lightweight boot offers power, precision, and comfort in an AT package that's just as comfortable and warm as your alpine boot. In walk mode, you're treated to 40 degrees of buttery-smooth cuff flex to keep your stride natural on the skin track, and in ski mode, the cuff locks into place against the boot shell so you lose nothing in the way of performance. Push this boot into technical descents worthy of a freeride boot and tackle ascents that would otherwise demand a too-light, minimalist AT boot--the Prime takes both in stride.


Free Shipping. Black Diamond Men's Prime Ski Boots FEATURES of the Black Diamond Men's Prime Ski Boots Lightweight (1.64 kg, 3 lbs 10 oz each) 3-buckle alpine touring boot with 4-buckle performance Triax Pivot Frame with Flex 110, 40deg of resistance-free touring motion and locking QuickWire cuff buckles Efficient Fit at Liner with 1:1 Boa closure system, comfort fit and articulating zones for ultimate, all-day, long lasting touring comfort Rockered, rubber outsole with integrated tech inserts provides dramatic grip and durability 103 mm V-shaped last with 100% thermoformable liner SPECIFICATIONS of the Black Diamond Men's Prime Ski Boots Weight: Per Pair: 7 lbs 4 oz / 3.28 kg Size Range (Mondo, in Half Sizes Only): 24.5-30.5 Liner: Efficient Fit at Light Frame Technology: Triax Pivot Flex Index: 110 # Buckles: 3

- Moosejaw

CLOSEOUTS . Black Diamond Equipment Prime AT ski boots boast the fit and support of a performance boot, with the comfort of a three-buckle design and thermoformable BOAand#174; Efficient Fit liner. Available Colors: METALLIC BROWN. Sizes: 27, 27.5, 28, 28.5, 29, 29.5, 30, 30.5, 26, 26.5.

- Sierra Trading Post

Black Diamond set out to create a line of skis and boots that are lightweight, but do not compromise performance. They came up with their Efficient Series which is focused mainly on the touring and backcountry segment of the ski industry. So if you like

- Teton Village Sports