Animas Backpack - Watershed - 3300 Cubic Inch, 54 Liters - Available in Various Colors The Westwater waterproof backpack is ideal for portaging or hauling gear from the boat to the campsite. Keep your gear dry even when submerged! Easy-to-use ZipDry Seal presses shut like a freezer bag. 840 denier fabric with a heavy matte PU finish for abrasion resistance and overall strength. All seams are RF welded and guaranteed to be free of leaks. Wide mouth for easy access on-the-go