B1-1001 Features: -Dual, Self-Locking Buckles ratchet the boots securely around the ankle/lower calf area for a customizable, comfortable fit. -Super-Soft 5/8″ Foam Liners are a special blend to give maximum comfort with minimum compression. -Optional Calf Loops wrap behind each leg to place a 2 degree bend in the knees, which helps to reduce the load on the knee joints and top of the foot. -Flexible, Lightweight Shell made of highly durable DuPontTM HytrelTM for a more forgiving, slightly pliable boot that weighs just 2 lbs. each. Product Type: -Gravity boot. Finish: -Blue and black. Number of Items Included: -2. Pieces Included: -2 Gravity boots. Maximum Weight Capacity: -300 Pounds. -Specialized Materials including 40% glass/nylon alloy in the hooks and calf loops for unmatched strength and durability. -One-size-fits-most design fits a majority of leg/ankle sizes; alternatively, Teeter offers an XL Gravity Boots option that is 1″ larger in diameter and 1½” taller (calf loops not included). Dimensions: Overall Product Weight: -5 lbs.