The Coldspark UltraDry is a high performance winter hiking boot that keeps feet warm, without the bulk. Stay on the move through winter with waterproof comfort and aggressive traction.

The Coldspark UltraDry is a winter boot engineered for hiking and other active cold weather pursuits. Retain, a unique heat reflective and breathable lining, 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.

Fabric / Material: TPU Yarn Mesh
Waterproof: UltraDry Waterproofing System
Insulation: Retain
Footbed: Dual Density EVA
Midsole: Dual-Density EVA
Outsole: Vasque Monolith With ColdHold Compound
Last: Perpetuum
Weight: 1 Lb. 14 Oz. (838g)
Leather Type: PU Coated, Waterproof
Leather Weight: 1.6-1.8mm