Color -- Description Model 38ARK for 1220 & 1230 Built in harness meets ORC requirements. Manual or automantic inflation mechanisms inflate to over 35 lbs. of buoyancy. Tailored off the neck fit will not limit your range of motion and will keep you cool in hot weather. Reflective tape on cover for greater visibility, safety whistle attached to bladder. One size fits adults over 80 lbs. with 30" - 52" chest size.