Columbia Women's Silver Ridge Plaid Long Sleeve Shirt 53% nylon/47% Tactel nylon ripstop Imported silver ridge; hiking shirt; trail shirt; wicking; button down shirt; sun protection Omni-Wick moisture management Omni-Shade UPF 30 sun protection Zip-closed pockets Camping and Hiking Silver ridge; hiking shirt; trail shirt; wicking; button down shirt; sun protection