EVA Rubber Material: Synthetic sole and EVA, Lightweight and Comfortable for daily wear. Portable and Ultra-lightweight, weight from 120-130g, easy to carry on your bag, easy transport and space saving. Convenient slip-on design, lattice slip proof eva sole, enhances the friction of the ground and reduces stress, easy to put on(off), feel free to wear whole day. Easy cleaning and Quick Drying, the hollowed out design of uper make the shoes water-friendly, suitable for garden or yard or nurse working,or just enjoy the sport activities like the swim or water class. Note: Please refer to the size chart in the \"product description\". the size is too small, it is recommended to buy a large size!