45NRTH Wolvhammer BOA Cycling Boot - Slate Size 39. Most winter boots aren’t made for riding bikes — they’re too warm in some spots or not warm enough in others and they’re not optimized for pedaling. Wölvhammer BOA® boots are the answer for winter riders. Designed and built for the rigors of real winter riding (deep snow slippery ice cold pedals) These winter bike boots are rated for comfort from 0º to 25ºF (-18º to -4ºC) slotting between our Ragnarök and Wølfgar boots.

Rated for 0º to 25º F / -18º to -4º C comfort

The BOA® Fit System delivers micro-adjustable precision fit engineered to perform in the toughest conditions

Hook-and-loop upper strap helps secure boot

Removable synthetic liner boot for quick drying

Waterproof breathable membrane to manage moisture

200 g of Primaloft® insulation

Aerogel insulation underfoot blocks the chill from snow ice and cold pedals and allows for insoles without sacrificing warmth

Non-slip sole for walking on icy surfaces

Compatible with flat and clipless pedals