FEATURES: 165N buoyancy through 33g CO2. one size fits all. Ultra light vest (approx. 700g in weight) made from robust 600D polyester. Low profile design ideal for agile day sailing or fast power craft. Zipper closure cover with excellently placed burst point. Ergonomic shape. Easy front entry donning with SS40 quick release waist belt. Comfortable to wear due to optimized distributed weight. Very small and compact. Manual waistbelt version available. This Lifejacket uses a UML PRO SENSOR operating systems. Leg strap as standard on all models. Coarse polyester webbing so buckles do not slip.