This might just be the lightest and most portable way to keep your things dry. It packs down to the size of a small water bottle when not in use, and weighs just 1.4 ounces thanks to lightweight and fully waterproof 30D nylon. Plus, it's topped with a roll top for easy access and a secure seal.

• 19" x 13"
• 1.4 oz
• 30D nylon
• Fully waterproof
• Easy roll top for a secure seal