Marino Bay flannel shirt with thermal drop sleeves will keep you warm on cooler days. Shirt body is 55% cotton/45% polyester flannel. Thermal long sleeves are 65% polyester/35% cotton. Gives you a layered look and extra warmth without weight. Button front closure. Dual button-close chest pockets. Colors: Navy/Charcoal plaid, Black/Red plaid. Sizes: M2XL.