Exped fold drybag olive the exped dry fold bag olives are lightweight waterproof bags with a roll top closure ideal for military and hunting users who need to keep clothing and equipment dry but cant use a brightly coloured solution with a hydrostatic head of 10 000mm these have a waterproofness comparable to a tent groundsheet so you know theyll resist a good soaking features lightweight and pliable waterproof storage bags with fold top closure 10 000mm water column and taped seams