NEOS 11" Explorer Waterproof Winter Overshoes (EXPG) 500 Denier waterproof nylon upper protects against water, snow, sleet, rain and wind; lightweight design helps prevent foot and leg fatigue 4 mm polyurethane foam insulation ensures warmth in extreme temperatures; hook-and-loop strap system for secure, comfortable fit Rugged but lightweight Perma outsole is slip-resistant to ensure good traction on snow and ice; snow shoe-compatible heel Compact for convenient storage; optional 10 mm removable EVA insole adds comfort (sold separately) Recommended use: construction, transportation, mining, utility, oil and gas, farming and equestrian, outdoor general purpose