From Columbia, these shorts feature: Omni-Shade™ UPF 50 guards against skin damage using tight fabric construction and modified fibers to block UVA/UVB rays, so you stay protected in the sun Omni-Shield™ repels moisture and resists stains by preventing liquids from absorbing into fast-drying yarns, so you stay clean and dry in damp, messy conditions Drawcord-adjustable, elastic waist secures the fit Interior mesh briefs for breathability and comfort Zippered back security pocket and hand pockets for small items Uses: Fishing Machine wash/Tumble dry  Made of Nylon  Imported.