""This incredible shirt will actually keep you dry when you get a wave over the bow or over yourself. It is a coated shirt that is SPF 150; you will not get any UV rays through this shirt. Great for screen printing too! Get them for the whole crew. #DS101" It is important that the description of this product be accurate so that everyone is on the same page and the technical information is correct. At the risk of over burdening you with the Arid Core Technology information here is what makes the ACT gear (DRYSHIRTs and DryGuards) different from all other technology on the market today: The fibers are impregnated with a special type of carbon at the filament level and then cured through a special process and the PFOA derivative is removed. The resulting fibers are then spun into a thread that is 100% hydrophobic. This nylon thread is then woven into a fabric and the results are the Arid Core Technology material.