Comfort Flex Neoprene Life Vest - Type III - USCG Approved High performance neo jacket for all types of watersports 1.5 mm thick premium neoprene (inner and outer layer) Flex-fit back for maximum comfort and mobility All sizes feature closed sides Vest is USCG approved for PWC and water skiing use, or any activity that involves being towed ***SIZE CHART*** Small/Medium: 32"-40" chest Large/X-Large: 40"-50" chest 2X/3X Large: 50"-60" chest WARNING: This product can expose you to chemicals including di-2-ethylhexyl phthalate which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.govWARNING