The Columbia Sportswear Women's Sandy River Cargo Short is made of 100% nylon material and has Omni-Shade UPF 30 sun protection to shield you from the sun's harmful rays. The fabric is quick drying and repels water to help keep you as dry as possible. The zip-closed security pocket keeps your valuables safe, and the multifunctional pocket stores small items. Exterior adjustable wasitband. Relaxed fit.