The lightweight Watersnake Inflatable PFD Level 150 yoke has been designed to meet the AS4758.1 stringent safety rating. The Watersnake Inflatable PFD Level 150 Foul Weather Offshore Yoke is designed for all-day comfort, with a soft neoprene neck-liner to avoid irritation or chaffing on the back of your neck. It is designed to wear over your clothes and has a large 50mm webbing belt with a twin-tab synthetic nylon buckle for quick and easy fitting. The tough and durable material is nylon Oxford 420D with convenient access for maintenance and servicing. It is rated for adults heavier than 40kg+, with chest sizes 80cm to 140cm. This Watersnake Inflatable PFD is designed flat for easy storage and has a manual inflation system that is easily activated by pulling down on the toggle to initiate the release of the 33g CO2 gas cylinder. There is also a mouthpiece for oral inflation. Watersnake Level 150 PFDs are designed for general offshore and rough weather use, where a high standard of safety and performance is required. They are designed to maintain a fully clothed person in a safe position on their back with their head clear of the water without any action required by the user.