The Tasman always fits tight at first especially if someone has a high instep or high volume foot. It does stretch out over time. If you are in between sizes, please size up or down based on the volume of your foot and height of your instep. Inspired by the reconstructed military garments seen on the streets of LA, UGG reinterpreted the Tasman in military-grade ballistic nylon, used by the US Airforce for parachutes. By updating one of their best-selling slippers in this material, it can now trek both inside and outside the house in cozy and ultra-durable style. Bomber nylon upper. Easy slip-on design. Woven braid for retro fashion appeal. UGGpure wool sockliner and insole for optimal comfort and warmth. Treadlite by UGG outsole provides increased traction, durability, cushioning and flexibility. Imported. Measurements: Weight: 7 oz Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.