Woolrich's Trout Run Shirt is a wardrobe staple that can meet the chill of winter head-on, yet doesn't add unnecessary bulk. 4.75 oz. Pebble-washed for softness, it features a button-down collar, front patch pocket with handy pen slot, and chambray-lined inner collar. 100% cotton. Available in Woolrich Hunt Plaid (TM) and The Original Buffalo Check Plaid, created by Woolrich in 1850. Men's Standard Fit.