The Cressi Solo 2mm Hood features a smooth neoprene seal along the outline of the face and on the chin area to limit the entrance of water. It also features double lined neoprene and adds extra warmth for colder water diving. The hoods contoured shape provides a better fit and the hoods seams are glued and flat lock stitched for added comfort. The hood is made of quality Neoprene thick 2mm, recommended for medium warm water.