The TWF 3MM AQUA ZIP BOOTS have been made with 3mm neoprene have been designed with flexibility and comfort in mind. The boots have a sturdy zip on the inner-ankle side to make getting them on and off simple and straightforward They feature tough moulded non-marking soles that provide added grip and protection during beach and water sport activities. The boots have been designed to function just like a wetsuit - they let water in to create an insulated barrier between the boot and your foot to help keep you warmer in the water for longer.??????? FEATURES: 3MM NEOPRENE WETSUIT BOOTS ZIP ENTRY SIZES: SIZE CODE UK SIZE EU SIZE 028 10 28 029 11 29 030 12 30 031 13 31 033 1 33 034 2 34 036 3 36 037 4 37 038 5 38