Sizes: Comes in UK sizes 4-7. Adjustable velcro: With an adjustable hook and loop Velcro fastening for easy on and off. Velcro trainers: Get a stylish pair of velcro breathable trainers. Mesh material: Made using breathable mesh to keep feet fresh. Colours: Choose between white, black, dark grey, light grey and red. | Velcro-Strap Breathable Trainers - Black - UK | Wowcher