Sea to Summit Ultra-Sil Dry Bag

These bags feature a 2000 mm hydrostatic head rating and fully taped seams, making them highly water-resistant and capable of keeping gear dry in wet conditions. However, they are not intended for submersion or prolonged exposure to heavy water pressure.

The oval base design serves two purposes: it prevents the bag from rolling away on uneven surfaces and allows it to pack more efficiently into the contours of your backpack compared to a traditional round bag.

The buckle on the roll-top closure is designed to be easily replaced in the field without tools. If the buckle breaks during a trip, you can swap it out for a new one in seconds using just a small screwdriver or by sliding it onto the webbing.

Yes, the bag is crafted from 30D nylon with CORDURA yarns, which provides an excellent balance of high-tenacity strength and ultralight weight. While it is thin to save space, it is specifically engineered to resist tears and abrasions during standard backpacking activities.

The slippery finish is intentional to help the bag slide easily into and out of a packed backpack, reducing friction against other gear. While it is smooth to the touch, it remains easy to handle and secure when using the roll-top closure.