Blanking looked to the air cargo industry for the first iteration of the backpack, which led him to employ the use of aluminium and ABS plastics. Prototypes were developed in 1996. The first prototype featured a concept in which the rigid outer shell could be incorporated in such a way that the outside surface area is as useful as the internal volume. Fasteners located all over the pack let the wearer attach a skateboard or snowboard with simple straps that can be taken off with ease. Later, accessories were made to fit around the sides and the crevasse situated at the bottom of the pack for lumbar support.