Forms to your chest like no other water garment. Designed by a Manhattan tailor, dropped into a computer and scaled to fit just the right way. Fine-tune this One even more with our Boa system. THIS IS NOT A CGA VEST Impact Vest. BOA Closure System. Manhattan Tailored Fit. Engineered Mesh. 4 Way Stretch. Longer Torso. Oversized Arm Holes. Water Resistant. Air Foam. Non-CGA Approved.