A hybrid lifejacket for extreme conditions. The buoyancy is provided by both closed cell foam and an inflatable bladder. The Rib has an integrated safety harness approved to EN1095/EN 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.