Product Overview
The Coldspark UltraDryâ„¢ is a winter boot engineered for hiking and other active cold weather pursuits. 200g of 3Mâ„¢ Thinsulateâ„¢ insulation and our proprietary UltraDryâ„¢ 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.
Â