AquaLungs high standards put Dimension far above the standards in back inflation-style BCDs. This BCD incorporates AquaLungs Wrapture harness system and SureLock II mechanical weight release system, and is made of specially developed ResisteK material to stand up to the most rugged conditions in salt or chlorinated water without fading or abrasion. WraptureHarness System: patented swivel shoulder buckles and ultra-thin back plate provide unsurpassed comfort and prevent the BCD from riding up on the surface. Out of the water, the system allows you to stand up straight by keeping the cylinder close to your center of gravity and transferring the weight to your hips Safe, single-pull weight release with patented SureLockII Mechanical Weight Release System Looks good, and stays that way: made of new, technologically advanced ResisteKmaterial to resist fading and abrasion in saltwater and chlorine HP hose routings through the back keep your entire kit low profile, minimizing drag Propr