Supplied with light 

For Open sea/ blue water sailing.
Standard CE EN 396
Fitted with a whistle - retro-reflective tapes for night-time recognition - a collar which folds back and a quick-fit crutch strap to prevent riding up.
Self-righting capacity ( in 5 sec.) : these lifejackets are designed to help exhausted sailors turn safely on their backs this is the reason for the asymmetrical buoyancy distribution on some models.
Buoyancy is provided by closed cell polyethylene foam.
150 Newton models have a grab handle as an extra feature.