ATZ1007: Features: -Provides prophylactic support protection and comfort with simplified application. -Design incorporates a stabilizer molded at a 60 degree angle to help guard against ankle sprains and prevent rollover. -60 Degree stabilizer helps prevent inversion and aversion. -Breathable fabric provides cool and dry comfort. -Sleek anatomical design minimizes bulk in shoe. -No-lace single strap application simplifies adjustment. -Available in left and right versions. Specifications: -Available in 3 sizes:. -Small: Men less than 7, woman less than 8.5. -Medium: Men 7.5 -11.5, woman 9-13. -Large: Men 12 +, woman 13.5 +.