pvc portable inflating mattress 1.waterproof is good 2.roll up iscovient for ... in the tent 4.yoga Detailed product description:pvc portable inflating mattress supplier of moistureproof mattress / travel mattress /auto ... mattress /waterproof mattress/Features:weterproof, dampproof, moistureproof, automatically inflating just by opening the easy-open, easy-close valve.our ...