The Lululemon Swiftly Tech collection is designed for running and training. -Slim fit and sits below the waistband for moderate coverage -It features long sleeves and thumbholes -The Silverescent technology is powered by X-Static and inhibits the growth of odour-causing bacteria on the fabric -This shirt is constructed with seamless construction -54% nylon, 40% recycled polyester, 3% elastane, 3% x-static nylon -In NWT condition; no known rips, tears, or stains Length: 26.5" Armpit to Armpit: 16" (with stretch!) Sleeves: 26"