SealLine Boundary Packs Waterproof and durable, the Boundary Pack is perfect for canoeing and canyoneering. Protect your gear on trains, buses, boats, and float planes. Made with 19 oz. vinyl sides and a heavy-duty 30 oz. bottom. Features include removable padded shoulder straps and our Dry Seal roll-down closure. Available in three sizes.
The larger sizes close with side-cinch buckles.
The Boundary 35 is daypack sized and includes a waistbelt and top buckle closure.

Radio-Frequency Welding
To make watertight seams on all SeaLline Dry Bags, SeaLline use radio-frequency welding. With this technology, there's no burning or melting invloved. Instead, the Dry Bag fabric is fused at the molecular level into a waterproof, welded, seam that is stronger than the fabric itself.

Dry Seal™ closure
Identified by a pair of black vinyl strips, the exclusive SeaLline Dry Seal™ closure seals more effectively than any other roll-down closure. Instructions are embossed directly on the strips making it easy to get a positive, watertight seal.

Boundary Packs come in three sizes that make it easy to transport food, clothes, sleeping bags, gear and cameras etc.

Boundary Packs can withstand chemical and UV deterioration and mildew.