Made from sleek, lightweight ripstop fabric with superior wicking and breathability, this UPF 40 sun protecting Columbia Womens Sun Goddess II Booney Hat is all about fun in the sun. Its got a wide brim that extends from 3 inches in front to 4 inches in back for all day, all around protection. Omni Wick ripstop 100% polyester construction. Omni Wick pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable. Omni Shade UPF 40 sun protection blocks UVA and UVB helping to prevent sunburn and long term skin damage. Omni Wick sweatband. Adjustable chin strap. Adjustable drawcord and toggle at back. One size fits most.