The Outdoor Research Tundra Trax Booties offer superior warmth with 200g PrimaLoft Gold Cross Core insulation. The 100% recycled Pertex Quantum Eco shell is wind-resistant and breathable, and the rubber traction sole prevents slipping on icy surfaces. An adjustable drawcord cuff and a comfortable memory foam insole provide extra protection from the cold and make the Tundra Trax Booties an ideal choice for cold weather adventures.