Although I have never worn them, there are some stains from my older child's drawing. These are a pair of kids' sneakers designed specifically for performance needs, typical of Puma. Recommended size for children aged 0 to 4 years old. Puma's new SLIPTECH technology allows you to put on and take off the shoes without using your hands, creating a unique step-in style. The upper is slip-on, featuring durability and traction to support foot movement. The midsole features ProFoam and durable rubber pods for traction on any surface. The stretchy neoprene and webbing fit perfectly to the feet of active children. Features Profoam: Lightweight EVA material cushions the landing and supports the next step. Details Weight: Approximately 66g Breathable mesh upper Neoprene material on the upper Lightweight EVA tooling Rubber and Velcro