The new Airis Inflatable Kayaks by Walker Bay just look like fun. The fact that they’re light weight, fit into a backpack and are easy to use on the water are all just icing on the cake. The kayaks seem like the ultimate in portability. The three models – Play, Sport and Tandem – fold up and fit into their own backpacks. Then you can stow them in a lazarette or lash them on deck until you’re ready to use them again. They only take a few minutes to inflate, and they have a patented AirWeb high-pressure construction to make…