Under-the-covers warmth you can wear to work. These Carhartt Men's Relaxed Fit Flannel Lined 5 Pocket Jeans are made of heavyweight denim and lined with soft cotton flannel. The relaxed fit gives you extra room in the seat and thigh.Features13-ounce, 100% Cotton, washed denim 4-ounce, 100% Cotton flannel liningSits slightly below the waist Comfortable fit through the seat and thigh with more room to move Straight leg opening fits over boots