Stay comfy all day long, from school to weekends wearing Skechers Dynamatic - Swift Tread. This lightweight sporty sneaker features a mesh and synthetic upper with stretch laces, adjustable instep strap, and a cushioned comfort insole. Skechers Boy's Dynamatic - Swift Tread Sneaker in Blue/Lime, Size 10.5 | Textile/Synthetic, Machine Washable. This trainer is designed for kids and features a blue colour family. The size for this UK children's foot is 10.