The North Face - Ultra 102 (Pumice Grey/Reed Green) - Women's: Heel & Forefoot X-2 cushioning offer the best combination of durability, lightness and energy return. De-coupled heel deflects pressure for softer heel impact. Dual-density EVA midsole provides support and cushioning. Extended Roll Control medial heel wedge works as a stabilizer to prevent heel from rolling inward. Highly-breathable, motion-control trail runner for distance running or adventure racing. Injection-molded Thermo Plastic Urethane (TPU) shank insert enables the foot to flex comfortably while protecting against sharp rocks. TNF Trail Grip rubber cupsole for traction on varied and uneven terrain. Highly breathable sandwich mesh upper expels water from shoe and prevents debris from getting in while a wicking lining moves sweat away from your foot. Outlast footbed prevents your foot from overheating and sweating by absorbing excess heat keeping them dry and comfortable. Reinforced toe cap and heel resist wear. Scree gaiter attachments lets you secure a gaiter to the shoe for added protection from debris and moisture. Two-Tier Lacing is made up of two layers of laces to secure any width foot and to make adjustments accommodating foot swelling.