Aqua Lung Pearl Women's Jacket Style BCD (X-Small, Black / Twilight) A unique, hybrid air cell combines a back inflation wing with a wrap around jacket. The benefit is increased lift in a small package as well as stability throughout the dive. Sleeker, low profile lobes with scalloped lower edges to rise above the hips The patented, integrated sports bra provides added comfort, security and stability. The flat valves reduce drag and keep the BC streamlined. The SureLock II weight pockets align themselves. Just insert the pocket until it clicks. A simple, single pull release is all that is needed to jettison the weights in an emergency