Balancing ultra-light protection with breathability and freedom. A running T-shirt that you can rely on, so you can focus on the run ahead. Ultra lightweight Blending high-tech fabrics with a minimalist design, this is an extremely lightweight top. All seams are taped, not stitched, so it feels like you're wearing nothing. It's Swiss-engineered to support your sprints, mid-distances, marathons and beyond. Sweat-wicking On DryTec™ Running, unrestrained. Thanks to its sweat-wicking On DryTec™ fabric front, you'll stay fresh even while you feel the burn. Plus, it's abrasion-proof, so it's engineered to shield and protect your skin. While the back features a highly breathable mesh for refreshing airflow. Streamlined seams No one needs a top that will ride up on race day. With a sleek forwarded side seam, the Performance-T delivers when the heat is on. Born for speed, it's crafted from elite materials to provide race-leading function where you need it.