Robert Graham Men's Denver Short-Sleeve Knit Polo Shirt 100% Cotton Imported Machine Wash This polo is crafted from 100-percent cotton for a soft feel. A classic three-button placket, contrast undercollar, and signature detail on the contrast inside yoke completes this look. 100-percent pima cotton, three-button placket, contrast undercollar and side vents lining, Robert Graham signature detail on inside contrast yoke