Sealson UNUS 32 Fastpack Ultra 200X - GreyPresenting a manifold number of technical details and futuristic materials, the UNUS32 from Taiwanese brand Sealson has rendered the humble backpack into science fiction. The 26L main compartment is constructed from a patented polyethylene fabrication called UltraWeave, a high density waterproof fibre, and is finished with roll top closure. The straps have been reimagined as a trail running vest, complete with the prerequisite flexible mesh pockets