In case you needed some persuading past the season's best color patterns, the Kulshan Flannel Shirt is loaded with the technical chops you need for light hikes, and balanced out with a stretchy, sun protective fabric that will make you feel just as good as you look.. . . . . Movement-Mirroring Stretch. Wicking. Quick Drying. Breathable. UPF 30. Drop-in Chest Pocket. Fabric: 100% polyester, stretch woven. Center Back Length: 29 3/4" / 76 cm. Weight: 9 oz/255 g. Machine wash. Imported.