The Swede-O® Inner Lok 8® features a patented internal figure eight strapping system which assures proper strap placement and simulates professional taping. The quick release strap allows you to easily remove the brace by loosening the internal strapping system. The exclusive dual eyelet lacing system is offset to create a "pulley effect", keeping the brace tighter longer. The top strap covers the laces and locks the figure eight straps in position. The full elastic back is comfortable against the Achilles tendon and helps reduce irritation and potential for blistering. The breathable tongue helps keep the foot cool and comfortable. The Inner Lok 8 is backed by an industry leading 3 year warranty and constructed from a durable ballistic nylon which is comfortable thin, and lightweight.