NF0A8AEV The North Face Men's VECTIV Fastpack Insulated WP Durable, insulated and feature-rich, the Men’s VECTIV Fastpack Insulated WP features TNF's innovative VECTIV platform for trail-tuned propulsion and stability. These rugged boots are ready to adventure. Upper: Leather upper with a reinforced mudguard Waterproof DryVent membrane 200 g Heatseeker Eco synthetic insulation D Ring for gaiter compatibility Snowshoe knob on rear heel for strap support Protective, reinforced toe cap Sole Unit: VECTIV technology designed to help maximize energy on the trail 3D TPU plate under forefoot helps with multi-directional stability Rocker midsole geometry engineered to create long-lasting forward propulsion High-rebound EVA midsole Surface CTRL rubber outsole with 4 mm lugs is optimized for high-level traction when you’re hiking and is made with 10% rubber from smallholder farmers committed to agroforestry principles and regenerative agriculture practices