Ideal for indoor sports such as squash, badminton: the children ASCICS Trainer PRE-upcourt PS for boys. The gel technology in the rear and forefoot synthetic for good cushioning and high Tragekomfort.- leather with mesh inserts for breathability laces and Velcro strips ensure good grip molded outsole for optimum grip thanks non-Marking sole ideal for indoor surfaces suitable upper material: textile, other materials (synthetic) lining: textile insole: textile sole: Other material (rubber)