waterproof backpack Cascade Waterproof Backpack (35L) - WXP-1Bit the bullet and bought the Borough waterproof backpack in copper. Thought people might find it helpful to see the size compared to the bike. : r/BromptonDryTide 18L Waterproof Backpack - DRYTIDE Waterproof BackpacksTreqa Waterproof Backpack 40 Litre - Slate BlueThe Project 8020 Waterproof Backpack Is Even Safe for SurfingWaterproof foldable backpack 25L - Travel FORCLAZRoll-top Backpack, Waterproof Surf BagWATERPROOF BACKPACK 20L-BLACKBest waterproof backpacks reviewed in 2024 for wet-weatherMIER Waterproof Backpack Dry Sack Roll-Top, Army Green, OutdoorsClassic Waterproof Backpack - 45 LitresErgonomic Waterproof Backpack, Expandable 25L-30L Dry Bag with Front Zipper Wallet and Mesh Pocket, Multipurpose DaypacksWaterproof Backpack - Zion OutfitterWaterproof Dry Backpack, Made in USADryTide 18L Waterproof Backpack - DRYTIDE Waterproof Backpacks, Duffels and Dry BagsStormtech Cascade Waterproof Backpack (Ocean Blue/Black)PROJECT 8020 WATERPROOF BACKPACK – Expedition UnitsWaterproof Backpack - 25 Litres - NORTHFALLSWaterproof EMP Faraday Backpack (30 Liter) by Ready HourBrompton Bear Grylls Waterproof Backpack - OliveWaterproof Backpack DRY BACKPACK 40 HD - HPAWaterproof Backpack, OverBoard Classic - 30 LitresWoods Medium/Large Waterproof Backpack Rain Cover For Camping/Hiking, Fits Up To 94.5-LOrvis - Pro Waterproof Backpack 30L