The Ultrawarmth Hooded Vests are designed to keep you warm across your entire body and head, thanks to the Ultrawarmth OMNIRED Infrared Thermal technology embedded in the inner fabric. The OMNIRED technology has been scientifically proven and FDA-approved to retain body heat and accelerate heat recovery. The GEN2 ventilation in the hood allows for the release of trapped air and prevents water entry, while the sealing at the face and neck working in conjunction with the wetsuit collar keeps you dry.