Waterproof thermoplastic rubber rand and outsole shells keep the slush at bay and feature forefoot flex grooves for comfort when walking
Dual-density EVA midsoles in TNF Shellista Pull-On boots provide cushioning against shock
3/4-length nylon shanks offer torsional stability for trekking on uneven terrain
Temperature-sensitive Ice Pick™ rubber lugs on outsoles harden when temps fall below freezing, providing extra bite into the terrain
Temperature ratings are approximate based on high activity levels and can be affected by many conditions, including weather, wearer's activity level, fitness, metabolism, perspiration, circulation, exposure time, clothing and cold sensitivity.