The Swiftly collection is all about high-performing fabric that seamlessly adapts to you and your workout. This could also make a great shirt for layering in the cold weather. -Lightweight -Quick-drying -Sweat-wicking -Shortened length won't ride up on long runs or race day -Silverescent™ technology, powered by -X-STATIC®, inhibits the growth of odour-causing bacteria on the fabric -Thumbholes Pit to Pit 14 in Length 25 in Machine wash. Tumble dry low. Do not dry cleaned, iron or bleach. 54% nylon 40% polyester 3% elastane 3% X-Static Nylon Athletic tip, long sleeve, thumbholes,