Everyone who's surfed for a while has had their bell rung by their board or another surfer's board. The surf brain protects your face and eyes from the sun and helps protect your brain from kooks dropping in on you. While the Surf Brain is technically a bump cap and should not be used as a substitute for a helmet, it can help soften the impact of a board in crowded lineups or give you more confidence when surfing alone. Featuring a removable plastic insert and constructed of hydrophobic quick-dry nylon, the Surf Brain is perfect for most water sports.