A hybrid lifejacket for extreme conditions, buoyancy is provided by both closed cell foam and an inflatable bladder. The Rib has an integrated safety harness approved to EN1095 /UN ISO 12401, lifting becket and twin crutch straps. Also included is an integrated spray hood, VHF / Epirb holder, inspection window for the status of the automatic inflation system, plus attachment points for emergency light, name tag and knife.