Breakdown MSR DromLite Bags offer a high-capacity, lightweight water storage system that collapses down to the size of their cap. Constructed of a rugged film and RF-welded seams, the BPA-free food-grade lining ensures better-tasting water and doesn't break down if the water freezes. These bags alleviate the bulk of water hauling utility bags. The 3-in-1 cap lets you fill, drink, and pour with ease. A loop is provided to easily hang at the camp.