You insulate the rest of your body with drywear and wetsuits; don't forget your head. The NRS Storm Cap, with its 2.5 mm neoprene, provides excellent thermal protection. The 2.5 mm neoprene gives outstanding insulation and warmth. Titanium-laminate adhesive reflects back body heat to increase warmth. Taped seams help keep water out and warmth in. We've lined the cap with our quick-drying Checked VaporLoft™ for extra warmth and comfort. Plus it prevents that shudder-inducing clammy feeling when you don it in the morning. The sturdy, flexible bill provides shade from the sun and helps keep water from dripping into your eyes. The stretchy, comfortable no-buckle chin strap makes the cap easy to put on, even when wearing gloves. NRS Storm Cap