Inflatable Swimwest Arkona 275 Performance class (ISO 12402): 275 N Inflation technology: Secumatic 3001S Buoyancy: 280 N CO₂ cartridge: 56 g (929) Float system: CLASSIC float signal orange Standard equipment: In protective cover, mouth valve, signal flute Harness: Yes Fastener: Click fastener at the front Crotch strap: Yes Spray cap: No Emergency light: Optional Transmitter preparation: No Inspection window: No Recovery belt: Yes Size/ body weight: from 50 kg Float: Classic Type of buoyancy: Inflatable Clothing type: Bad weather clothing Approval: CE Reflective stripes: Yes Back panel: Single back strap Protective cover material: Polyamide Automatic lock: Optional The compactly folded entry-level lifejacket with removable protective cover has a single buoyancy chamber. The flat fold means that the lifejacket is hardly bulky, guaranteeing optimum freedom of movement. When the lifejacket is inflated, the back strap adjusts automatically and ensures an optimum fit. The SECUMAR Arkona 275 Harness has been developed for universal use in the leisure sector.