Engineered to adapt to changing foot shape, the Nike Free TR 8 flaunts a dynamic combination of technologies for sprint running. This 'Pink Tint' update integrates a Flywire system into the mesh upper with a molded heel counter for durable support. A 'Just Do It.' text graphic, 3D printing, and fused Swooshes inject sporty attitude into the look. A foam midsole and outsole with flex grooves create a cushy, flexible base.