The North Face Arnuva 50 Boa trail running shoe is built for the athlete who runs trails, dirt paths, even road and offering the cutting edge Boa lacing system for a rapidly adjustable secure fit. Boa multi-adjust lacing system. Abrasion-resistant bomber synthetic nubuck upper with highly breathable and protective sandwich mesh. TPU injection saddle adds optimal lateral and medial stability and support. Northotic ergonomically designed footbed with Poron forefoot and heel inserts and AgION antimicrobial covering. Ultra lightweight CMEVA midsole combined with X-2 polymer dampening compounds provides high impact cushioning and long-lasting support. Rear foot compression cage delivers mechanical assist to midsole components and neutral guidance for mild over-pronators. Proprietary The North Face outsole with Tenacious Grip rubber compound gives excellent traction both on and off road, as well as stability and durability under a variety of weather conditions and temperatures. Wt. 9.9 oz.