The North Face - Esker Ridge (Tnf Khaki/Algae) - Men's: Lightweight, low-cut hiker suitable for light hiking with loads up to 25 lbs. 1.6-1.8 mm upper. Abrasion-resistant textile. Rubberized leather toe cap and heel. AgION anti-microbial lining and X-2(tm) offers cushioning, energy return and pressure relief in high impact areas. Gusseted tongue. Die Cut EVA in forefoot and heel. 2/3 length steel shank insert. TNF Trail Grip(tm) rubber cupsole for traction on varied and uneven terrain..