Get ready for all-season comfort when you lace up the reliable thirtytwo Prion boot! ; Synthetic upper with textile materials for durability. Comfort fit for a perfect out-of-box feel. 3-D molded tongue allows for easier lacing for improved fit and flex. Level 1 Footbed: • EVA with Sherpa top sheet for warmth and comfort • Lightweight for optimum performance ; Level 1 Liner: • 100% Heat Moldable Intuition Liners for a custom fit • Single density Intuition foam for comfort, warmth, and support • Internal anatomical foam overlays for optimal heel hold • Integrated Lacing System for improved heel hold ; Durable rubber outsole with extra grip pattern for proper traction in all conditions. Flex: Soft ; Imported. Measurements: ; Weight: 2 lbs 7 oz ; Shaft: 11 1 2 in ; Product measurements were taken using size 11.5, width D - Medium. Please note that measurements may vary by size.