Details At 185 grams, the women's Arc'Teryx Norvan SL is one of the lightest trail running shoes ever developed. It features a highly breathable, exceptionally hydrophobic, and hardwearing TPU mesh upper that easily folds down for compact packability. Designed to perform across a range of terrains, the Vibram® outsole with Megagrip rubber compound provides enhanced grip on wet or dry trails. Upper Single layer TPU mesh, 0.8mm microfibre heel collar lining, 0.4mm TPU protective film, Medial heel carabiner clip-in point Midsole Integrated sockliner Main - SL EVA / 60 Shore C Anti-Fatigue Insert - SL EVA / 65 Shore C Chassis: Forefoot 0.7mm TPU film Outsole Vibram® Megagrip Heel 20mm Forefoot 13mm Offset 7mm Width B Weight 160g / 5.6 oz Arc'Teryx Norvan SL Women's