The award-winning MD3153-123 inflatable life jacket with hydrostatic inflation technology. 1F automatic hydrostatic inflation technology automatically inflates under water pressure, not accidentally in rain, spray or moisture. Bright fluorescent yellow-green inflation cell for increased visibility in the water. SOLAS reflective tape, safety whistle and strobe light attachment on inflation cell. SecureZip closure stays closed in high winds and still opens easily when inflating. Provides 35 lbs of buoyancy when inflated - more than twice that of standard foam PFDs. Cylinder is contained within the bladder to protect against corrosion. Lightweight outer fabric used in the body armor industry. Reflective accents on shoulders. Emergency oral inflation tube. Meets Transport Canada Ship Safety Bulletin No. 06/2012. Comfortable neoprene collar.