661 evo compression jacket short sleeveblood ow and muscle recovery with compression fit sixsixone has been at the forefront of action sports protection for almost a decade they have designed and developed some of the most innovative protection products to ever hit the market featurescore cooling with stretch mesh constructiond30 removable shoulder protectionneoprene backingvelcro closuresce en 1621 1 1621 270 nylon 10 spandex 10 polyurethane foam 10 eva carecold machine washdo not