Crewsaver Spiral 100N articlenumber_44260 3003 the new models have been Glued and Blind Stitched the new models have been optimized for higher hull speed and better tracking performance but is also packed with top end tech such as Diamond Flex neoprene for remarkable flexibility and Glued and Blindstitched seams for a watertight construction All sizes offer 100N of buoyancy with the baby and child sizes being fully rated as an ISO 12402 4 approved lifejacket The inherent buoyancy offered by the foam reduces fatigue during general in water activities and is available in a range of sizes suitable for children and adults