Description of The North Face Arnuva 50 Boa - Women's Built for the ultra distance runner who runs trails, dirt paths, even road, The North Face Arnuva 50 Boa offers the innovative Boa lacing system for a secure, near-custom fit. An abrasion resistant bomber synthetic nubuck upper provides extra durability, while the highly breathable and protective sandwich mesh upper lets your feet breathe. The Arnuva 50 Boa has a sure grip heel lining panel and TPU injection saddle for optimal lateral and medial stability and secure footing when you hit the trails. The North Face constructs the Arnuva Boa with a Tenacious Grip rubber compound for superior traction in varied weather conditions. With a secure grip and stable support in varied conditions, The North Face Anrnuva 50 Boa is designed for the distant runner that knows no boundaries. Features: Boa multi-adjust lacing system Abrasion resistant bomber synthetic nubuck with highly breathable and protective sandwich mesh upper TPU injection saddle for optimal lateral and medial stability and support Sure Grip heel lining panel prevents heel slip and minimizes friction Northotic ergonomically designed footbed with Poron forefoot and heel inserts and AgION antimicrobial footbed covering Ultra lightweight compression molded EVA midsole combined with 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 The North Face outsole with Tenacious Grip rubber compound provides excellent traction both on- and off-road as well as stability and durability under a variety of weather conditions and temperatures