Stable trainers for strength training with rubber outsole, textile lining, and lace-up closure. Perfect for maximizing performance in the gym. Upper: Textile Sole: Rubber. These shoes feature a regular fit and a lace closure for a secure feel. Designed for adult use. Upper is made of textile and the lining is also textile, with a durable rubber outsole. Please make sure that you try your footwear on before returning, as the box or label may state a US/Euro size which is different to the UK size.