Stable trainers designed for strength training, featuring a durable rubber outsole and a comfortable textile lining. The secure lace-up closure ensures a snug fit, perfect for maximizing your performance in the gym. Upper Material: Textile. Sole Material: Rubber. Please ensure you try on your footwear before returning, as the packaging or label may indicate a US or European size that differs from the UK size. These trainers offer a regular fit and a textile upper and lining for breathability.