Topoint Sleeping Mats Dampproof Mat Egg Slot Folding EVA Outdoor Moistureproof Cushion Pink Material: polyethylene (PE) safe non-toxic materials, exquisite technology, perfect details. high super waterproof, dustproof, no pollution, no peculiar smell, low thermal conductivity Lightweight, Waterproof, moisture-proof function single mat, double fold, super thick,easy to carry egg groove shape of the soft and comfortable, this shape does not change the weight of greatly increased comfort.