Allow your foot to flex as it was intended in these training shoes featuring injection molded eva outsole with realflex flex grooves for perfected natural motion The upper features a newly developed adaptalink technology that helps evenly disperse force on lace pull for full foot locked in feel 5mm die cut eva sock liner for added comfort and lightweight hexagon shaped mesh in vamp for comfort and breathability Carbon rubber added on forefoot and heel for traction only where needed and 2d midfoot fade print for style appeal Medial and lateral smoothfuse technology for molded lightweight support and fit frame technology for stability and support during medial and lateral movements