Description of Mountain Hardwear Canyon L/S Shirt Specifically designed for hiking and backpacking: pack friendly seams, wrinkle resistant and quick drying, with UPF 30 sun protection. Features: Usage: Superlight Backcountry Weight: 0 lbs, 11 oz / 330.00 g Body: Desert Cloth™ Panel: Mini Wick Mesh Flip up sun protection collar Mesh side panels Sleeve roll-up tab UPF 30 sun protection Zip chest pocket Zip napoleon pocket Back mesh vent This product is a "Top Pick" by Rainier Mountaineering, Inc. Button cuffs