Pumped For Fall: MTB And Gravel Gear & Apparel—Shop Our Picks
Home Page

Detail Images

Current Color

Boreal Kangri Bi-Flex Mountaineering Boot



Kangri Bi-Flex Mountaineering Boot

Boreal's Kangri Bi-Flex Mountaineering Boot isn't just built to withstand the tough conditions you'll encounter in the alpine—it's a boot designed to deliver a comfortable and easy-flexing feel whether you're roped up during glacial travel or working up a vertical crux of rock and ice. Versatile single boot construction makes the boot suitable for use on all but the world's highest peaks thanks to its Boreal Dry-Line waterproof and breathable membrane and triple-layer Thinsulate insulation for 360-degrees of foot warmth.

What really sets the Kangri Bi-Flex apart from other boots in its class, though, is the addition of Boreal's VTS tongue system. The tongue combines a traditional lace closure, neoprene cuff, and hook-and-loop adjustable tongue that can be dialed in to ensure a precise and comfortable fit around the leg. Boreal even added its Bi-Flex system, which consists of soft compressible panels for progressive forward flex for easy walking. Boreal built the Kangri on a Vibram Teton sole for solid and reliable traction and added a lightweight carbon composite midsole for a stiff, responsive feel when front pointing. Boreal even integrated layers of EVA and PU for better shock absorption when climbing on rock and ice.

  • Boreal Dry-Line waterproof and breathable membrane
  • Triple-layer Thinsulate insulation
  • Split suede leather upper with rubber rand
  • Bi-Flex system
  • Three-piece adjustable VTS hook-and-loop closure
  • Neoprene cuff
  • HFS padded heel system
  • Boreal PBG-680 carbon composite midsole
  • Shock-absorbing EVA and PU midsole layers
  • Vibram Teton sole
  • Automatic crampon compatible
  • Item #BRF000T

Upper Material
split suede leather, [rand] rubber
Boreal Dry-Line membrane
VTS hook and loop, neoprene, lace
Boreal PBG-680 carbon composite, EVA, PU
Vibram Teton
single boot
Crampon Compatibility
Claimed Weight
[single, size 8] 2lb 5 =oz
Recommended Use
alpine & expedition

Tech Specs

What do you think about this product?


>Rating: 5

Boot of Extremes

I've put it through the wringer
Runs small
Size Bought
5` 10"
150 lbs

I've worn these many times for winter camping, glacier travel, ice climbing, trekking, and wet approaches. I recommend these boots for wide-footed climbers for use in ultracold, car-to-summit excursions. You can perform technically in them, but they trade agility, precision, and light-weight in favor of comfort and warmth. Be aware, they are bulky; but you will not get frostbite unless you're trying to. I imagine the best place to use these are the greater ranges. They run a little small I think when you factor in thick socks. I'm a size 9.5 in street shoes but I'm in a size 11 with these boots + smart wool. Pros: extremely comfortable for wider feet, cushioned, soft, super-stiff toes, flexible-enough bottom, good traction, auto-crampon compatible, can approach relatively comfortably as well as climb 90-degree ice. Super waterproof (with good gaiters); I crossed a calf-high roaring stream in these and they didn't leak a drop. Cons: bulky, imprecise on rock, sweaty feet in anything above 15-degree weather, front points of crampons will be covered by the massive toe so you'll most likely will have to stretch crampon plate as lengthwise as you can, the velcro tab that closes the laces could be a little longer. To be clear, I love these boots and they are perfect for their niche, but I am in the market for a leaner, lighter, more agile boot for the same approach-to-climb-to-descent versatility.

Thanks for this insightful review - it's so helpful!


Do these boots have a shank?