Dry waist Bag(waist bag,waterproof bag) 1,size is 20x12x9cm,material is TPU 2,carried conveniently,waterproof function is good Dry waist Bag(waist bag,waterproof bag)1,used PVC/PVC Mesh/TPU material ,2,size is 20*12*9cm3,and with Heat Sealing technique to make the product Waterproof.4,It could be used in Sailing ,Diving,Boating,Fishing,river rafting and other outdoor sports.