ICEBUG Vallda NT Boots | REI Co-op。Vallda is super comfortable to walk in, insulated and water-proof. Extremely easy to put on thanks to elastic elements plus a zipper (pull on style). Aggressive Nordic Traction outsole for superior grip. Dedicated winter shoes, with a comfort temperature range from +5°C to 20°C (41°F to 4°F). Suitable for moderate activity levels in cold winter conditions. Midsole EVA contains 20% BLOOM® foam, which is made from algae from overgrown lakes. The Nordic Traction outsole contains 49% natural rubber. Lining is made of bluesign®, solution dyed and 100% recycled GRS certified PET polyester. These winter boots have no studs. The lining is fleece, 100% recycled, bluesign® and solution dyed, and GRS certified with PET polyester textile. Designed for walking. Boots are brand new.