Oneill Checkmate Neoprene Comp Vest #3788 "This is not a USCG Approved Vest" The Checkmate Comp Life Vest features a segmented core to allow an uninhibited range of movement. The pullover design with side zip allows easy on and off even when wet. The Checkmate is accented by O'Neill's Wind Resistant Glideskin Exterior. This helps the vest to keep a more constant temperature by not allowing the outside air to seep in. To top it off O'Neill slaps a lifetime warranty on this gem.