Columbia Men's Bahama II Shirt Omni-Shade Technology:
Omni-Shade clothing protects you from damaging UV radiation by blocking the majority of the sun's harmful rays, so you can stay out longer. It's like sunscreen, but you don't have to re-apply. Your safety increases as the Ultraviolet Protection Factor (UPF) increases.
Omni-Shade blocks UVA and UVB rays, helping to prevent sun burn and long-term skin damage through tight weave construction, UV reflectors and UV absorbing technology.