Front pocket with zipper. Extra soft floating material at the front. Easy to put on and take off through the zippered side section. Velcro adjustment on the waistband, crotch strap attachment on the two smallest sizes. 50N buoyancy and is classified as a buoyancy aid. A lifejacket that has a carrying capacity of 50 Newtons, is classified as a buoyancy aid and sometimes referred to as a sailing vest. They have a slightly simpler design than lifejackets. A 50N lifejacket keeps you afloat by a good margin but lacks a collar to support your head. It has the buoyancy force more evenly distributed between the front and back and therefore does not guarantee to turn an unconscious person to a supine position. 50N lifejacket is therefore recommended for swimmers who weigh at least 25kg.