Nylon General Purpose Life Jacket – Adult Oversize – Blue The Onyx Adult Oversize Nylon General Purpose Life Jacket is constructed of durable nylon and poly-twill straps. All sizes include large armholes, adjustable belt and chest straps, and open sided stylings for universal fittings. Features:Adjustable belts for a secure fitLarge armholes for greater range of motionProvides comfort and safety for all types of water activitiesLightweight and durable foam contours to your body and won’t hinder your mobilityTechnical Specifications:Chest size – 40\