The Icebreaker Flash Long Sleeve Crewe is made from lightweight 150gm merino to regulate your temperature while you're exercising. A versatile sports top, the Flash comes with eyelet mesh panels for maximum venting, handy stash pocket, and anti-chafe seams. Featuring distinctive floral sleeve graphics. Perfect for running, mountain biking, fitness and other high intensity sports. Made with a little LYCRAÂ® for a perfect fit, these styles regulate temperature, breathe to prevent overheating, dry fast and resist odour.