The Bio-Speed cross training shoe is built for multi-directional activities. Its lightweight sticky rubber provides stability and response while the reinforced heel increases durability. Full-length QU!KFOAM(TM) provides a stable platform to enhance shock dispersion and maintain agility. Features: - Breathable air mesh with thermal printing and non-stitch film provide form fitting comfort and style. - Molded blend of QU!KFOAM for additional comfort and support. - A firmer QU!KFOAM provides a stable platform to enhance shock dispersion and maintain agility. - Lightweight sticky rubber patterned for traction and response in multi-directional activities with a reinforced heel for added durability.