All-Day, Cotton Blend Comfort. The Rooftop Short Sleeve Shirt is the perfect shirt for a day of climbing at the crag, followed by an evening of chilling around the campfire. The lightweight, quick-dry fabric keeps you cool and comfortable all day long, and back-yoke pleats provide better mobility when reaching for that next crimp. The shirttail hem keeps your shirt in place when you're belaying your buddy, and the left drop-in chest pocket is the perfect place to stash an emergency snack.