LL Bean Travel Duffle Dry Bag Adventure Waterproof Blue Black XL.

Lightweight dry material that has all reinforced big tough straps and hardware. Great gently used. Fill it up, roll down the top and secure the ends. Cinch down the top straps and your set. Great gear for adventure that needs to be dry from the elements and secure.

See pictures and ask any questions you may have. I think it retails for $150-170.