Floating Backpack Will Reduce Weight On Shoulders And Back - YouTube
20L Compact Floating Backpack, Roll Top Dry Sack with Waterproof Phone Case for Kayaking, Beach, Rafting, Boating, Hiking, Camping and Fishing Bag - China Dry Bag and Waterproof Backpack price | Made-in-China.com
Floating' backpack claimed to ease burden of travel | CNN