The S7 chest protector is the only protector that has wedge shaped abs, which help knock a ball straight down when blocking. Designed to be light and thin, this chest protector has the best fit and breathability compared to other chest protectors on the market. player's say it feels just like wearing a T-Shirt. Internal moldable PE protective plates are inserted in the throat, collarbone, and sternum to keep those sensitive areas well protected. LENGTH:16.5". CLEANING: Machine wash. Cold water / mild detergent / air dry.