Sea to Summit Big River Dry Bag

The Big River Dry Bag is fully waterproof. It features a 10,000mm waterhead rating, tape-sealed seams, and a secure Hypalon roll-top closure designed to keep your gear dry even in heavy rain or during water-based activities.

The oval base prevents the bag from rolling around when you set it down, which is particularly helpful when packing or securing it to a bike rack. It also creates a more stable, space-efficient shape compared to traditional round-bottom dry bags.

Yes, the bag includes secure lash points that allow you to strap it down to a bike rack or motorcycle frame. However, ensure you have appropriate straps or bungees, as they are not included with the bag itself.

Absolutely. It is constructed from 420D nylon with a TPU laminate, making it highly resistant to abrasion and tears. It is built specifically for rugged environments like motorcycle touring and water sports where gear takes a beating.

The light-colored interior is a practical design choice that improves visibility inside the bag. It makes it much easier to locate smaller items or gear at the bottom of the 65-liter compartment without having to dump everything out.