COMFORTABLE MATERIAL: Made of soft durable, soft friendly hight quality material. quick drying and breathable, comfortable to wear. Not stuffy, No smell. CONSIDERATE SAFETY DESIGN: Anti-slip rubber sole with honeycomb pattern prevent slipping during exercise and sports activities and protects your baby feet from being hurt by sharp objects. PERFECT WEARING EXPERIENCE: Super lightweight and flexible just like socks. fabric upper with overlays provides a close, supportive fit, keep shape of foot pretty without distortion. OCCASIONS: Various size water shoes are designed for toddlers, little kids, big kids. Perfect for water park, swimming pool, beach and other indoor and outdoor leisure water sport activities. TIPS: Please refer to the SIZE CHART in product description. We promise exchange, return service if there are any size/quality issues, make your purchase risk free.