Conquer long miles with confidence in the Arc'teryx Norvan LD 4, a lightweight trail runner engineered to keep you comfortable, stable, and moving efficiently across demanding terrain. Responsive cushioning, breathable support, and Vibram(R) Megagrip traction work together to help you stay focused on the trail ahead, no matter how far the adventure takes you. Design: Single-layer spacer mesh upper delivers lightweight breathability for high-output trail adventures TPU overlay adds structure and targeted durability without weighing you down Engineered flat-knit collar and tongue provide a secure, adaptable fit Gusseted tongue helps enhance comfort and keeps the fit locked in Recycled polyester laces and lining support a performance-focused design In-Shoe Comfort: 4mm molded open-cell PU sockliner delivers breathable cushioning underfoot CMP EVA midsole provides lightweight shock absorption for lasting comfort on the trail Dual-density midsole construction features a supportive medial post for enhanced stability Soft, breathable interior lining helps maintain all-day comfort Durability & Traction: Vibram(R) Megagrip outsole delivers confident traction across varied trail conditions Litebase technology reduces outsole weight while maintaining durability and grip TPU overlays reinforce high-wear areas for lasting performance 4mm lugs provide reliable bite on uneven terrain Additional Details: 25mm heel stack height and 19mm forefoot stack height create a balanced ride 6mm drop supports smooth transitions on the trail Weight: 230g