Columbia Sportswear Men's In The Dust Shorts 100% polyester trail ripstop. Lining: 91% polyester pinhole mesh/9% elastane Imported Elastic at Waist Omni-Wick Advanced Evaporation Omni-Shade UPF 30 Sun Protection Antimicrobial, Intended to Protect the Garment from Odor Caused by Bacteria Interior Draw cord