Mens Alpha Comp Pants From Arc'teryxFabric:N40p 3L laminated Gore Fabric TechnologyFortius 1.0 (84% nylon, 16% elastane, 160g/m²)Weather resistantBreathableDWR finishTaped seamsComposite constructione3D Ergonomic patterningGusseted crotchLower leg gussetWater-resistant external zipsFront fly with snap closure1/4 length ankle zip with gussetAdjustable hem drawcordsExpanding gusset hemsAdjustable integrated webbing beltSnap waist closureSoft, brushed lined waistHarness-compatible thigh pocketZipped thigh pocket with flapReinforced instep patchTrim fitTapered legWeight: 420gIce climbers and alpine climbers move quickly, generate a lot of heat yet require waterproof protection from spindrift, water, and falling snow. Streamlined for light weight and energy efficiency, the Alpha Comp Pant has a trim fit to maximize fabric technologies and reduce crampon snag, with e3D to accommodate free movement of layers. Fortius 1.0 stretch woven fabric regulates heat and provides stretch through the core areas and back of the knees. N40p three-layer laminated Gore Product Technology provides durable weather protection across the seat, front of the legs and lower leg cuffs. Ziped lower leg adjusts to two volumes to accommodate different the needs of ski boots, alpine travel and climbing with crampons. Extremely durable Keprotec provides instep protection.