neoprene life guard; made of nylon outside; EPE float foam rubber inside; buoyancy>103N ...... neoprene life jacket / Life vest:Color & sizevarious are availablematerialnylon outside, EPE foam float material inside, reflective beltbuoyancylarger than 103Nbuoyancy lossless than 5% by submerging fresh water for 24 hoursnet weight0.7kg/pcMax weight support90kgspackageEach packed in polybag,7pcs ...