KINDLY TIPS: We offer 100% risk-free refund if you have any quality problems after receiving the product.Since arch insoles are generally thicker than ordinary insoles, they are suitable for shoes with deeper heels. If the shoe's mouth is relatively shallow, when placed in the insole, the shoe's space will be relatively smaller, making it difficult to accommodate children's feet. NATURAL SHOCK ABSORPTION: The insole is made of superior PU material and breathable fabric, soft in texture, strong in wearable and shock absorption, which designed to effectively treat and prevent common sports injuries such as achilles tendonitis, shin splints and knee pain. HUMANIZED DESIGN: According to the foot structure of kids, Bacophy insoles are meticulously designed to reduce fatigue and discomfort, provide better cushioning and long-lasting support for every step. Besides, designers specially add a layer of velvet fabric layer to make the feet cool by sucking up all the sweat and moisture. Keep your kids' feet comfortable and dry even in hot weather. DEEP HEEL CUP: Bacophy kids arch support insoles are designed with structured deep U-shaped heel cup. It helps to evenly distribute kids' feet pressure and realign their skeletal system to protect their heel during severe impact of landing. In other words, it can lend extra support and stability while walking or running, and prevents sliding and friction during high impact and long distances activities. ORTHOTIC ARCH SUPPORT:3.5 cm medium firm foot arch support relieves foot fatigue or pain which caused by prlonged standing or walking, corrects abnormal walking patterns, relieves metatarsalgia, patellofemoral syndrome, and helps low back pain. In a word, these ideal orthopedic inserts provide a convenient and extremely soothing solution for children with flat feet, over pronation, high arch, low arch, common foot pain, arch pain, heel pain & plantar fasciitis.