Sorel - Sorel - 1964 Pac/1964 Premium 9mm Felt Innerboot (Grey) - Men's

Sorel - 1964 Pac/1964 Premium 9mm Felt Innerboot (Grey) - Men's: Pioneered by Sorel after extensive field testing. Advanced 4-layer construction. Wicks perspiration and stores it away from the foot. Very comfortable and durable. Removable for drying. Maximizes thermal insulation by reflecting back body heat. Hand wash/air dry in conditions where innerboots are exposed to excessive dirt and perspiration. Soft, short loop polyester Minktex (green inner layer) maximizes contact to quickly wick perspiration from the foot. Black polypropylene core insulates and facilitates wicking process. Radiantex foil reflects body heat back to the foot. Polyester/viscose blend (camel outer layer) insulates and stores moisture away from the foot. Needle construction allows for efficient wicking of moisture. Temperature rated for -40F/-40C. Shaft: 9.5". Circumference: 13.5".