Lululemon Train to Be Short Sleeve - Size: 4 (no tag but I checked my old receipt; pit-to-pit measurement is about 15") - Color: Pink Taupe - Condition: GUC, no notable flaws - From Lululemon: "Soft, with a modern silhouette, this sweat-wicking short sleeve is perfect for casual fitness classes, intense workouts, and everything in between. No side seams—seamless construction in the body minimizes chafing."