Snap closure Trenches Icon HYDRO was engineered with a hydrophobic technology on the crown panels designed to bead away water and prevent absorption. Constructed with durable materials the hats are water repellant, floatable, and breathable. Exterior Crown:Hydrophobic crown panels with laser perforated side and rear panels for breathability. Interior:Performance moisture wicking lining inside the front panels with signature hidden besom pocket. Visor:Hydrophobic exterior with a water capable visor core and signature undervisor seal Closure: Custom soft touch snapback closure