Performance meets fashion in this glamorous, wide brimmed Columbia Womens Sun Ridge II Hat. Its got an advanced Omni Freeze ZERO super cooling sweatband that reacts with your sweat for instant and prolonged cooling, while a UPF 30 treatment provides bonus protection from sun burns and long term skin damage. 100% polyester straw construction. Omni Freeze ZERO super cooling sweatband that reacts with your sweat for instant and prolonged cooling. Omni Wick pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable. Omni Shade UPF 30 sun protection blocks UVA and UVB rays helping to prevent sunburn and long term skin damage. Packable so its great for travel or beach bag.