RELIABLE PROTECTION: We believe our Earth Pak dry bags are the best out there--bar none. These dry bags are meant to last for years and provide waterproof protection for even the most rugged users. SHOULDER STRAP: 10L & 20L dry bags come with a 24-42 Inch single shoulder strap. 30L, 40L, and 55L dry bags are equipped with backpack style shoulder straps that also come with a sternum strap for added stability. IPX8 CERTIFIED WATERPROOF PHONE CASE: We have included our IPX8 Certified 6.5 Inch waterproof phone case that will fit even the largest of phones. This case features a very simple snap and lock access that has dual-sided clear windows that allow to take pictures while still inside the case. Suitable for phones up to 6.5 Inches of diagonal screen size. NATIONAL RECOGNITION: Recently featured by acclaimed New York Times Bestseller and entrepreneur Tim Ferris (Author of The Four Hour Workweek) in his blog. KEEP YOUR ITEMS DRY AND PROTECTED: Protect Your Valuables with our 10L, 20L, Dry Bags Just toss your gear inside, roll it down, and youre good to go on your next adventure.