Sea To Summit Big River Dry Bag

Heavy-Duty Oval Dry Bag – 5L to 65L

Built tough. Stays put. Ready for the rough stuff.

When your adventures demand gear that can take a beating, the Heavy-Duty Oval Dry Bag is your go-to companion. Made from 420D waterproof ripstop nylon, this bag is abrasion-resistant, space-efficient, and shaped to stay exactly where you put it—even on uneven terrain or bouncing around in a canoe, kayak, or on a rigged-out bike.

The oval base resists rolling, while Hypalon lash loops let you strap and stack with confidence. A Hypalon roll-top closure and fully taped seams guarantee waterproof protection, while a white interior lining improves visibility when you’re digging around for gear.

Whether you're stashing camp kit, compressible layers, or expedition food, this dry bag delivers bombproof performance without bulk.

Why We Like It

• Super durable 420D ripstop nylon stands up to abrasion and hard use

• Oval base prevents rolling and packs neatly in tight spaces

• Hypalon lash loops for secure attachment to bikes, boats, or packs

• Waterproof seams and roll-top = fully sealed from the elements

• White interior helps you see what’s inside

• Low-profile grab handles are easy to grip but won’t snag

Specs by Size