Updated and ready for action, the Akyra II is the perfect shoe for those seeking protection and stability while moving quickly and nimbly on the trail. A 3D Grip upper comfortably secures and protects the foot while remaining breathable every step of the way. The FriXionA(R) Red outsole provides excellent traction as the Trail Rocker2 system allows for a natural rolling gait mile after mile. We&';ve tested these shoes for you and wrote a review. Description a Extremely rugged hiking shoe with great durability on ridge scrambles, loose scree, and long hikesa KPU 3D Grid exoskeleton and mesh uppers provide structure and breathabilitya Trail Rocker2 outsole promotes natural pronation (outer heel to inner toe) support while hikinga Shock absorbing MEMlex EVA midsole cushions your stridea Aggressive lugs combined with FriXionA(R) Rubber and Trail Bite Heels provide all-terrain traction and maximum gripa FrixionA(R) Red outsole features varied contact surfaces guaranteeing maximum grip and durability on all types of terrain Specs ITEM: 44FSIZES: 38-47.5 (half sizes) WEIGHT: 12.8oz (365g) LACES: 100% Recycled PolyesterUPPER: Recycled 3-Layer Air Mesh / KPU 3D Grid(TM) / Flex-Guard(TM) inserts LINING: Recycled Air Mesh INSOLE: Ortholite Hybrid with 5% recycled rubber + 15% production waste foamMIDSOLE: 2.4 mm LaSpEVA / Injection molded MEMlex EVA w/ BIO-based componentsSOLE: FriXionA(R) XT 2.0 / Trail Rocker2 with Impact Brake System(TM) / 5.5mm LugsLAST: Tempo 2FIT: Medium / Wide