Features of The Marmot Women's Jensen Lt. Weight Flannel Shirt Bluesign approved fabric Durable, lightweight Performance double brushed flannel COOLMAX EcoMade for moisture management Marmot Upcycle product with recycled polyester from post consumer plastic bottles Ultraviolet protection factor (UPF)50 Quick-drying and moisture wicking Double brushed for added comfort Durable flat felled seams Darts for tailored Fit Shirt tail hem and single chest pocket