Nike Dri-Fit Versa Long Sleeve Training Top Open Back Black Size Medium Crewneck long sleeve top, rib hem and cuffs for a snug fit V neck open back design offers breathability and easy layering Nike Dry and Dri-Fit tech to help keep you dry and comfortable French terry interior for warmth and comfort Fabric: 62% Cotton, 38% Polyester Laying flat, armpit to armpit measures 25" and length is 24". Excellent pre-owned condition.