This open collar long sleeve top is by Banana Republic. It's 96% Cotton and 4% Spandex in a women's size large. 2 front open pockets. Open neck - a chemise or tee or something similar can be worn underneath. Approx measurements laying flat: Shoulder to shoulder 181/2" Underarm to underarm 21 1/2" Length from shoulder 24 1/2 Sleeve 23" Clean with no damage from a pet/smoke free home.