This lightweight piece has 4-way comfort-stretch fabric, making it a super-comfortable shirt for your more active days. Everything from half marathons, to double shifts, to the park on the weekends, you can do it all in the Lumianation! 94% modal, 6% elastane jersey. Omni-Wick, 4-way comfort stretch, modern classic fit. Center back length: 29 1/2''. Material: Modal, Elastane.