Herschel Dry Bag Backpack 32 LIntroducing the Herschel Outdoor Equipment Dry Bag Backpack 32L. Made with a weather resistant coating, this bag is designed for minimalistic travel and activities on the water and in the rain. For added security, it features a removable waist strap and a sternum strap with a rescue whistle. It includes a water resistant front pocket, slip resistant hypalon pull tabs, and a roll top closure with a welded seam construction to keep your essentials dry.