Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Cotton-Linen Sport Shirt - This essential trim-fitting sport shirt is crafted from washed cotton poplin and features our handsome Estate collar. Medium-spread Estate collar. Applied buttoned placket. Long sleeves with buttoned barrel cuffs. Split pleated back yoke ensures smooth, contoured shoulders. 100% cotton. Machine washable. Imported.