a Low profile front foam and sculpted upper back allows full range of motion a Thin back foam accommodates most canoe and kayak seats a Shoulder adjustments with airprene comfort pads a Shoulder webbing tuck aways a Adjustable side belts a Two large pockets with stretchable airprene panels accommodate necessary gear and allow drainage a Reflective material on the front and back a Loop on back for light attachment a U.S. Coast Guard approved and Transport Canada approved