If you're looking for full coverage on cold days in the water, throw on the Quiksilver 2mm Highline Surf Cap for more waves and less cold. This versatile piece is made from standard and mesh neoprene, with triple glued and bind stitched seams to ensure that water doesn't seep in. Breathable ear panels are there for increased comfort and resistance to stuffiness. Its 2mm thickness is ideal for surfing in typically cold waters, or just added warmth on windier days.