I'M SELLING THIS SOSPENDERS LIFE VEST. THIS VEST COMES EQUIPPED WITH A RIP CORD FOR QUICK INFLATING OF THE VEST. THIS VEST IS MENT FOR ADULTS OVER 80LBS WITH A CHEST SIZE 30-52 INCHES. THIS IS A NON-U.S COAST GUARD APPROVED VEST. THIS VEST SHOULD BE USE BY EXPERIENCED SWIMMERS ONLY. NOT FOR NOVICES. COMES WITH 2 CO2 CYLINDERS. THANKS FOR CHECKING IT OUT.