Review on IDRYBAG Dry Bag Backpack Waterproof Floating 20L/30L/40L, Dry Bags Waterproof Backpack For Men, Dry Sack Waterproof Bag Kayak by Mario Haan

Got the 20L backpack on a Tuesday and promptly packed for work (I bike to work in the Pacific NW). Everything I wanted in a biking backpack, but a bit small--tough to fit bike repair kit, work clothes, lunch, shoes and laptop (barely possible). Contacted customer service to upgrade and had my upgraded 30L bag by Friday. Unparalleled customer service, great quality durable backpack. If this is the style of backpack you're looking for, skip over those expensive brand names and give iDrybag a try.