This legendary lifejacket has been thoroughly redesigned and updated to the latest safety standards. The use of PVC-free Gaia foam is a matter of course for Astral lifejackets. A new foam distribution in the vest and an increase in buoyancy to 68N make the Serpent 2.0 a safer float. What has remained unchanged is the ethos of a good fit and functionality in a neatly packaged design.