Built with a hyper breathable, air permeable fabric, stay cool and dry on wildflower studded hikes in the Marmot Mens Notus Short Sleeve Shirt. This lightweight performance short sleeve polyester button up wicks moisture and quickly dries to keep you comfortable on the move, while the flat felled seams, simple plaid design and single chest pocket put the fashionable in fashionably late the only way you arrive at night. Fabric is 100% polyester plain weave 2.3 oz yd. AirExchange performance breathable, lightweight fabric. Ultraviolet Protection Factor UPF 25. Polyester for quick drying and wicking. Durable, flat felled seams. Shirt tail hem. Single patch pocket. Semi fitted style. Avg. wt. 5.3 oz. 150.3g.