Swede-O Strap Lok® Ankle BraceImproved! New heavy-duty top strap locks the figure-eight straps for a more secure fit. The Strap Lok is 30% lighter than conventional lace up braces and is made from a cool lightweight ballistic nylon material. Triple protection combines the Ankle Lok offset panel with non-stretch nylon straps that mimic the figure eight configuration. Seamless arch virtually eliminates irritation to the bottom of the foot.