Nike Men's Flex Control TR3 Sneaker Training Shoes Men’s size 8.5 Black EUC Excellent condition Emphasizing lightweight comfort and stability, the Nike Flex Control 3 Shoe is tailored to explosive workouts. Its lightweight, flexible upper features a midfoot saddle for adjustable stability, while its outsole features deep flex grooves to let your foot move naturally. If you're new to Poshmark, sign up with my code STRETCHGIRL537 and get $10.