Life jacket Waterproof; Conveniently swimming; Keep safe in the water. Life jacketMaterial: 1.5mm--3.5mm neoprene/nylon/lycra (optional)Color: red, blue, yellow, black, etc (optional)Size: SS#,S#,M#,L#,XL# (optional)Package: each a poly bag (optional)Zipper: YBS, YKK, DBM, etc (optional)Logo: welcome OEM Material Test: SGSProduct Test: CE & ATSM