ExOfficio BugsAway Breez39;r Reversible Sun Hat Anti-Insect: Insect Shield finish to repel flies, ticks, mosquitoes, chiggers, midges, and ants Moisture Wicking: Fabric moves moisture along the garment's surface away from the skin Quick Drying: Fibers release moisture easily so garment dries rapidly Sun Guard 30+: Specialized fabric rated with a UPF (Ultraviolet Protection Factor) absorbs and reflects harmful rays, preventing them from damaging your skin