The Feedback Flannel Twill Shirt is our best-selling casualwear button-up, with over 500 five-star customer reviews. Constructed with a bluesign® approved 100% polyester fabric, this flannel is wicking, breathable, and UPF 50+. It features two button flap chest pockets, a pen slot at the left chest pocket, and a shirttail hem. The Feedback Flannel Twill Shirt is the perfect shoulder season layer for quick weekend getaways, clocking in at the office, or linking with friends for happy hour.