... rubber inside; buoyancy>103N ...... neoprene life jacket / Life vest:Color & sizevarious are availablematerialnylon outside, EPE foam float material ... for 24 hoursnet weight0.7kg/pcMax weight support90kgspackageEach packed in polybag,7pcs packed in carton, the size is 60*60* ... compliance with the 1996 Amendment International Convention for the Safety of Life at Sea(SOLAS),1974Special logo or design ...