The Coaster is designed to have a slightly larger footprint, which helps to distribute flotation over a wider area. The result is a thinner profile that provides more mobility and comfort, while reducing interference with today&';s taller seat backs. Along with providing a great fit, the Coaster also features multiple pockets that will hold a beverage, your sunglasses, and other small items. Stohlquist&';s Graded Sizing offers the best fit, and lowest footprint possible, for the widest range of body types. We have fine tuned each individual size, and sculpted the foam footprint and foam thickness to provide a better fitting, and more comfortable PFD for people of all sizes. This allows us to fit young, smaller framed paddlers up to larger adults in the same style vest, while offering identical mobility and a low-profile fit across the size range. Thinner back panels help avoid interference, and provide maximum comfort with today&';s higher seat backs. By spreading the flotation elements over a wider area, we decrease the thickness of the PFD back, without increasing bulk in other areas of the vest. The innovative Cross-Chest Cinch harness, found only on Stohlquist PFDs, offers the most unique fit of any PFD, by keeping the vest down & in place, to eliminate ride-up. The "cinch" prevents and eliminates chafing on your chin and underarms caused by annoying vest ride-up. Dual forward pulls for a custom fit, with mesh shoulders & interior panels for maximum ventilation. For sit-on-tops, the vest can be worn lower on the torso for maximum back coverage against tall seats. For touring boats, simply adjust the shoulder straps so that the vest rides higher on your torso, and eliminates interference with your sprayskirt. Along with providing a great fit, the Coaster also features multiple zippered pockets, a mesh beverage holder, and a neoprene sleeve for your sunglasses. Type III PFD With sea level buoyancy of 16 lbs. 8 oz. to 17 lbs. 8 oz.