Smartwool Hike Full Cushion Crew - Men's Leki PERMAFROST™ INSULATION: Pressure-injected commercial-grade polyurethane

PERMAFROST™ INSULATION: Pressure-injected commercial-grade polyurethane foam in the walls and lid makes sure your ice stays ice

Part A and 1 tsp Part B

000 BTU heating system boils water in just over three minutes—perfect for melting snow or making coffee

Made in the USA with EVA closed cell foam

Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely

Smartwool Hike Full Cushion Crew - Men's Leki PERMAFROST™ INSULATION: Pressure-injected commercial-grade polyurethaneDescription Specifications Material & Care Sizing Chart Smartwool's Hike Full Cushion Crew socks use cushioning on the entire sock to help maximize warmth and protection. These responsibly sourced, ZQ certified Merino wool hike socks are built with their top sock tech, including Indestructawool technology for enhanced durability, their 4 Degree Elite Fit System for a dialed in, performance oriented fit, and their Virtually Seamless toe for maximum in