Product Features

The Coldspark UltraDry™ is a winter boot engineered for hiking and other active cold weather pursuits. 200g of 3M™ Thinsulate™ insulation and an UltraDry™ waterproof membrane keep feet comfortable while on the move during the winter. A multi-directional outsole lug pattern maximizes traction in icy and wet conditions. Free from cumbersome winter boots, there’s no limit to where you can explore.