FULL-GRAIN LEATHER & 1000 DENIER NYLON UPPER: Made from a combination of our premium full-grain leather and 1000 Denier nylon, this upper is extremely durable. FULL-GRAIN POLISHABLE LEATHER UPPER: Made from a smooth, full-grain leather, this strong and durable upper is completely polishable. GORE-TEX® (GTX): 100% waterproof and breathable, GORE-TEX® liners ensure that no water gets in, while allowing sweat and moisture to get out. 200G THINSULATE INSULATION: High-performance insulation that keeps you warm in the snow and rain without weighing you down. VIBRAM® KLETTERLIFT OUTSOLE: Specifically designed for comfort and durability; the heel provides superb shock absorption and the rubber compound guarantees great traction and stability on both wet and dry surfaces. WOMEN'S SIZING: This boot is available in men's and women's sizing, please ensure that you've selected the correct width for your needs. STITCHDOWN CONSTRUCTION: Handcrafted to provide a wider platform, our legendary stitchdown construction offers increased stability underfoot. Many of our stitchdown boots can be recrafted. HOW IT FITS: The 650 last offers a sleek, slender profile with a more narrow fit. Boots on this last tend to fit those with a more narrow foot better than those with a wider foot. This ensures a snug fit for terrain and activities that demand support and stability. If you do have a wider foot, we recommend ordering an "EE" (wide) in this style. RECRAFTABLE: Extend the life of your boot with our recrafting services. This boot is eligible for a number of services, including part replacement, leather care and restitching.