Experience the ultimate performance with the Asics Upcourt 6 Lace-Up Trainers. Made with a durable synthetic upper and an anti-slip outsole, these trainers are perfect for sports like volleyball, handball, and squash. Take your game to the next level with these functional trainers from Asics. Upper: Synthetic Sole: Rubber. The design features breathable mesh underlays with large sections of mesh inserts that help create a softer and more adaptable fit for maximum stability. 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.