I recently added an Alpacka with a cargo zipper to my fleet. In the past my backpack rode on the bow and I accessed cameras, food, water, bear spray, a jacket, etc, straight from that while paddling. But with the pack now sometimes stowed inside the tubes I still wanted easy access to those items without needing to mess around with a loose dry bag under the spray deck. Quick camera access is especially important to me.
I picked up some 2.92 oz DCF fabric and waterproof zipper ribbon. I sewed a deck bag that is 4β tall in the back and tapers to 3β in the front. The zipper (stern) end is 16β wide and tapers to 10β at the bow end. The bag is 12β front to back, for a total approximate volume of 550 cu in. I put hypalon gear loops at the corners to attach the deck bag via gatekeeper straps that I also use to attach my packraft carry bag to my SO packs. It weighs 2 oz (57 g). Now I just need to seam seal it.









