Adidas Lady Court Rock Indoor Court Shoes adiPRENE - under the heel for superior cushioning at impact. adiPRENE in the forefoot - maintains propulsion and efficiency Adaptive Torsion System - provides added stability and a controlled range of motion. Flexible rubber outsole - for durability and grip on the court. Non-marking outsole - means you won't get in trouble by the gym instructor for ruining their floor!