Sprintframe and sprint web offers a supportive and secure fit for your whole run the welded stitchless upper mesh ventilation and tpu plate outsole with replaceable spikes provides a durable design features welded stitchless composite membrane upper suede inner frame and sprint web overlay for stability with light weight sprintweb seamless upper designed using a laminate composite to lock the foot down during the event specific motion coolever mesh and lining uses clover shap