The North Face E50 Boa trail running shoe adds stability and durability under a variety of weather conditions and temperatures. Abrasion-resistant bomber synthetic nubuck upper with highly breathable and protective sandwich mesh. Boa Multi adjust lacing system. TPU Injection Saddle offers optimal lateral and medial stability and support. Directional heel lining panel helps prevent heel slip. Northotic™ ergonomically designed footbed with Poron forefoot and heel inserts and AgION® antimicrobial footbed covering. Ultra lightweight IMEVA midsole combined with the X-2 polymer dampening compounds provides high impact cushioning and long lasting support. Rear foot compression cage provides mechanical assist to midsole components and neutral guidance for mild pronators. Proprietary TNF outsole with Tenacious Grip rubber compound provides excellent traction both on and off road. Wt. 12.7 oz.