Versatile and durable, your gear will stay dry inside these round bottom dry bags, even in adverse conditions. Shut out water by rolling down the top a few times and snapping the side release buckles together. Constructed of extra heavy-duty vinyl /polyester tri-laminate with RF-welded seams. Great for power boats, sail boats, personal watercraft, kayaks, canoes, camping, motorcycles, ATV's, snowmobiles and car top luggage racks too.