Radar's lightest impact jacket to date features perforated Ariaprene foam to reduce weight and increase flexibility. The Decibel is segmented in a diamond pattern for uninhibited mobility and to provide the lightest setup with minimal intrusion on movement. Reversible Decibel 4-way stretch material for comfort. Easy, one-zip closure. Not USCG approved. Sizes: M(34"-37"), L(37"-40"), XL(40"-43").