CUSTOMER ARE OUR PRIORITY: We offer 100% no risk money back guarantees if you’re not thrilled with your purchase for any reason. Just tell us and we will do our best to give you the most satisfactory solution. Sizes vary from difference brands The full-length insole can be resized with scissors for customized fit, just trim the front to a custom fit your child's shoes. BREATHABLE: The top layer is made of anti-sweat and antibacterial velvet material. It helps keep the feet cool by sucking up all the sweat and moisture. Keep feet fresh even in hot weather. PREMIUM COMFORTABLE: Ailaka uniquely children insoles are made of premium medical grade PU foam which can provide better cushioning and long-lasting support for every step. It is more soft and cozy than other material insoles. HUMANIZED DESIGN: The arch insoles are designed with a deep U shape heel cup. It helps stabilize and support the foot, preventing sliding and friction during high impact and long distances activities. The three-dimensional design of the upper is more suitable for the foot type and can support the arch grow normally. ARCH SUPPORT: Firm foot arch support of 3.5 cm height relieves foot pain due to flat feet, over pronation, high arch, low arch, common foot pain, arch pain, heel pain & plantar fasciitis. Ailaka moderate hard children’s insole help correct flat feet and low arches, preventing potentially severe foot problems.