A rugged outdoor Columbia short in a soft, sandwashed fabric, the Ultimate Roc is outfitted with UPF 50 sun protection and an advanced water repellency treatment that shields you from rain and stains alike. Omni-Shield advanced repellency treatment wards off rain and stains Omni-Shade UPF 50 protects you during long hours in the sun. Zip-closed security pocket. Hand pockets. Omni-Shield Advanced Repellency. A water and stain barrier that resists light rain and stains, keeping you clean and protected. Omni-Shade UPF 50+ UPF (Ultraviolet Protection Factor) 50+ fabrics protect you from 97.5% of the sun's harmful ultraviolet rays. Columbia's UPF rated clothing is specifically designed and tested to be comfortable in the hottest conditions incorporating design features such as mesh, venting and lightweight fabrics F2