adidas F10 TRX TF Soccer Cleat (Little Kid/Big Kid) 100% Synthetic Rubber sole Shift your game up a gear. Its aggressive, off-pitch looks promise extreme acceleration and handling on turf, and its new ultralight, high-speed design with TRAXION outsole delivers. Die-cut EVA insole for light weight and comfort. Pre-molded EVA midsole with adiPRENE insert in the heel for comfort and shock absorption. TRAXION TF outsole for use on artificial turf and hard ground. TRAXION