Katin Derek Flannel - Men&';s The Katin Derek Flannel is a lightweight everyday layer built for comfort without unnecessary bulk. Made from 100% cotton flannel, it has a brushed finish and enzyme wash for a soft, broken-in feel. A button-closure chest pocket and shirttail hem keep the styling classic and versatile. Wear it on its own or layer it over a tee when the weather cools down. Details Material: 100% cotton lightweight flannel Finish: Brushed with an enzyme wash for a soft feel Pockets: Left chest pocket with button closure Hem: Shirttail hem