Mares Prestige SLS is a Jacket style bcd with a great new color design. Has excellent lift capacity and comes with the Mares new Slide Lock System (SLS) weight integration. The SLS has a positive locking system that gives you a visual check that when the pockets are locked in properly the visual window is green and red when they are unlocked. Mares added some improvements with this model like the swiveling buckles, improved shoulder straps, and a lower cut aircell. Comes with 2 rear trim weight pockects. Mares has also reduced the weight making the Mares Prestige SLS very travel friendly but not compromising the durabilty of the BCD. The total weight of the large Mares Prestige is 8.5 lbs.Excellent lift capacityLight, strong and durable denier 420Improved fit: Swiveling buckles, shoulders, low-cut aircellSLS integrated weight system3-dimensional zippered self-draining pockets2 rear trim weight pocketsReduced weight: T