Big Pack is worn like a comfortable backback: two ergonomically shaped shoulder straps and a cushioned strap for the waist. Both are easily detached for tours in the water. The harness can be adjusted in height to fit most body sizes.

The shape of the gas- and waterproof outer shell is specifically designed to create an aquadynamic performance while getting pulled along with the Seatrekking leash.

The high quality  circumferential gasproof zip keeps out dampness 100%  – even on longer lasting journeys.

The Big Pack can be inflated quickly by means of a valve. The inflated Pack slides easily on the water surface.

We developed a gauge pressure system that makes James C. inherently stable: the outer surface is smoothed by the inner pressure. This reduces the drag while floating in the water.

An adjustable membrane seperates two chambers. Wet items can therefore be kept away from dry ones. The main chamber with circumferential zip is water- and gasproof.