- GORE-TEX® membrane - BOA® Fit System - Roomy toe box Sustainable highlights: - Bluesign® polyester textile upper

Meets ASTM F1677-96 MARK II non-slip testing standards

Super-fine Merino wool touching your entire foot

dressed up or down

Alpine Whippet Attatchment waterproof studded shoe - GORE-TEX® membrane - BOA®Featuring BD's innovative ClickLock Dial, the Alpine Whippet attaches to all Black Diamond Whippet Ready poles to add traction and a margin of safety for steep ascents. So when youre punching up a couloir or traversing an exposed ridge, the Alpine Whippet Attachment provides an added margin of safety on steep winter terrain.