30% lighter than conventional lace up braces. Strap Lok is made from a cool lightweight ballistic type nylon material. 50% thinner than conventional lace up braces. Strap Lok's thin low bulk design fits even in the tightest of athletic shoes. Triple protection combines the patented lacing system with non-stretch nylon straps that mimic the figure eight configuration, effectively locking the ankle in a protected position. Exclusive patented ANKLE LOK offset panel traps the laces between the inner and outer flap to hold the laces tighter longer than any other brace. Patented close spaced eyelets concentrate the holding power where it's needed most creating the most effective heel lock. Full elastic back ensures complete unrestricted blood flow to the Achilles' tendon and virtually eliminates the chance for blistering. Short curved seamless arch virtually eliminates irritation to the bottom of the foot. Colour: White. Size: Large.