The Fourth Element Arctic Hat is perfect for keeping your head warm before, in between and after cold water diving. 

The classic Arctic construction featuring two layers of high insulation low bulk material makes this hat seriously warm. It has a fold up front flat, and long ear flaps with poppers at the bottom to ensure this hat stays securely in place. 

The outer layer of material is water resistant meaning this will ensure warmth on even the coldest, wet and windy days.