Teamo 170N Coastal BackTow Life JacketThe automatic inflation system features the UML Mark5i inflator and 38g CO2 cylinder. Designed for shorter offshore sailing including overnight passages and coastal sailing. The Coastal still features TeamO's award winning Patented BackTow system. This is the only lifejacket with a moveable harness point if you fall overboard whilst tethered to your boat, the BackTow system can be deployed after the lifejacket has inflated to turn you face up. The