Stay dry and comfortable, in the cool wearing Columbia Women's Tech Trek Short Sleeve Shirt, featuring a lightweight performance wicking fabric that transmits moisture away from your skin when you sweat, with stretch properties for great mobility and comfort during dynamic activity. Trail Tech 100% polyester fabric. Omni WICK advanced evaporation keeps you cool and comfortable at the height of sweat infused activity. Modern, classic fit. Comfort stretch. Antimicrobial treatment protects this product from bacterial growth. Length: 24.5 center back. Import.