Ride Engine's neoprene 4mm hood provides a serious boost of warmth and protection when you need it, and can be stashed away when you don't. If you have a wetsuit without an integrated hood, this is an essential accessory that will bring you warmer, longer, more productive sessions or, in some cases, make the difference between getting in the water at all. The Hood features a soft interior liner and taped seams, an elongated neck section, a sewn-in visor, an integrated face opening drawstring and a soft rubber mouth guard that can be tucked under the chin.