DescriptionThis is a pair of flatfoot orthotic insoles, which is made of premium, breathable, and elastic material for durable wear. This pair of arch insoles fit most size shoes, allowing you to enjoy exercising, running and hiking without heel pain. for boys and girls all day use.Features- Color: Blue. - Material: EVA. - Size 19-22 Yard: 14.8cm(Length) - Size 23-26 Yard: 16.6cm(Length) - Size27-29 Yard: 18.7cm(Length) - Size30-32 Yard: 20.6cm(Length) - Size 33-35 Yard: 22.6cm(Length) - Size 36-39 Yard: 25.1cm(Length) - Made of premium material, practical for long term use. - Breathable, comfortable and non-slid for boys and girls all day wearing. - Suitable for for poor foot walking posture, long-term walking. - Insoles are contoured to improve the foot to function correctly and eliminate pain. - Orthotic insoles with specially designed arch support and foot alignment.