This is the Drycase Masonboro 100% Waterproof Backpack 35L of Storage
Features:
- 100% waterproof main compartment with marine-grade waterproof technology
- Removable internal Velcro wallet compartment and zippered pocket for easy organization
- Rubber top-hold handle allows for one-handed carrying or hanging
- Purge valve lets you compress, inflate, or drain the pack
- Mesh water bottle pocket and front mesh pocket for holding wet items
- Dimensions: 28 x 15 x 9 inches
- Volume: 35-Liters
The Dry Case Masonboro backpack offers 35 liters of 100% waterproof storage space. It's marine-grade waterproof technology and purge valve function offer versatility too. You can use the pack as a shower or a cooler; simply use the valve as a drain when needed. Perfect for long-day treks or boat trips, this dry pack has padded adjustable shoulder straps, back support, tie downs/front straps, and chest straps.