The Arc'teryx Acrux SL GTX Approach shoe ensures you have the underfoot support and durable performance needed for technical approaches and day hikes. ; One-piece, seamless synthetic and PU-coated nylon yarn upper features a thermolaminated construction for high-abrasion resistance, a lightweight feel, lasting wear, hydrophobic properties. ; Arc'teryx Adaptive Fit Lite features a fixed, zonal stretch liner that molds to the foot for a custom fit. ; GORE-TEX liner technology ensures breathable, waterproof protection from outside elements. ; Tongue-free liner creates more breathable surface, and increases waterproof coverage. ; Lace-up closure. ; Laminated toe and heel caps. ; Front and back pull loops. ; 3D-molded OrthoLite footbed supplies breathability, arch support, and extended comfort. ; Y-groove split heel for improved braking. ; Spherical heel shape boosts braking and promotes a smoother ride. ; Durable EVA foam midsole delivers reliable stability and absorbs impacting shock. ; Vibram MegaGrip rubber compound is durable and grippy. ; Vibram Arc'teryx Light Approach outsole combines a sticky climbing zone and smearing inserts with a mountaineering heel tread for ease of stride. ; Imported. Measurements: ; Weight: 11 oz ; Product measurements were taken using size 8.5, width B - Medium. Please note that measurements may vary by size.