LIGHTNESS AND ELASTICITY. The Nike Sunray Protect 2 (PS) - Child sandal features full toe coverage and an excellent traction sole. Ideal for outdoor playing. Strap with strap closure for easy wearing of the shoe. With openings on the upper to facilitate air circulation when the feet warm up. Water resistant fabric upper for a natural and flexible fit. Foam midsole for lightweight cushioning. The two straps offer an adjustable fit. Available sizes for children: 27.5-40