Fourth Element Arctic is probably the world's best selling thermal undergarment from Fourth Element is now available in a simple one piece option. Featuring the innovative two layer technology pioneered by fourth element, the One Piece Arctic provides a simple solution to the challenges of thermal protection.
Features
Keeps the body dry and warm
Superior low bulk insulation for flexibility
Performs even when wet
Machine washable
Comfortable fit with fleece inner
Used by FBI dive teams and military divers world wide
