Made for riders in warmer conditions, a perforated version of the Coaster 2 jacket steps in for protection. Same features like CE approved armor with 1.2-1.3mm thick leather offer equal protection. Where they differ is that perforations, below zippered chest vents, flow air to riders. Six ply nylon thread and a zipper for pants match the other jackets specs. In case temperatures drop, zip the optional liner for extra warmth. Perforations are a great addition the Coaster 2 Air jacket for warm weather use.