The Feedback Shirt Jacket utilizes recycled insulating materials for layering on cool days or when the sun sets beyond the horizon. The torso is built with 100% polyester and a sherpa fleece lining for added insulation, while the arms feature VerticalX ECO insulation that breathes as it insulates. Snap button closures on the front and sleeves are a cinch to open and close, and the jacket features an interior left chest zip pocket and UPF 50 sun protection. The ultimate overshirt when temperatures drop, the Feedback Flannel Shirt is the go-to layering piece for casual outdoor wear.