MARINE · RV · AVIATION | 843.410.0188

Masonboro Waterproof Backpack

Availability: In stock

100% Waterproof Main Compartment, 35 Liters of Storage, High Quality Marine Grade Waterproof Vinyl, 2 Way Purge Valve (inflation/compression), Water resistant zipper outer storage pocket, Drink Holder, Bungee straps, Padded lower back support, Padded waist & hip support, Waterproof padded shoulder straps, Tie downs / Front straps, Chest straps, Internal zippered pocket, Removable internal Velcro wallet compartment, Durable rubber top hold handle, Webbing to secure carabiners to the side of the bag




The Masonboro backpack is 100% waterproof and is one of a kind, because of its two-way purge valve. With the purge valve you can inflate or compress the backpack, and even use it as a draining tool if using the backpack as a portable cooler or shower. The Masonboro backpack includes a fully waterproof main compartment capable of holding 30 Liters, an internal zippered waterproof pocket to store smaller items, a front mesh pocket so you can keep wet items out of the waterproof area, side water bottle holder, bungee cords that can hold your other DryCASE items, and lots of padding on the shoulder straps and back support for a comfortable hold.


  • Materials: High Quality Marine Grade Vinyl
  • Volume: 35 Liters / 2135.8 cubic inches
  • Weight: 3 lbs
  • Dimensions: 28" x 15" x 9"
  • Pockets / Straps:
    • External:
      • 2 top tote handles: 1 rubber coated, 1 nylon
      • 3 stitched loop daisy chains
      • Durable coated mesh front pocket
      • Mesh side tall water bottle pocket
      • Two adjustable length utility cords
    • Internal:
      • 35 liter 100% water proof main compartment
      • 1 front internal zip convenience pocket

Additional Information

Brand Dry Case
Type Bags