Cover: 300D oxford&210D nylon+0.11mm TPU coatedBladder: 210D nylon+0.11mm TPU coatedBuoyancy:?85N 150N 275NInflation time:less than 5sFloat duration:more than 24 hoursTemperature: -30C ~ +60 CSize:30"-52" suitable for most Chest SizeCO2:33G CO2 gas cylindeOthers:ODM & OEM service are provyou.