The Square Neck Button Front Tank is a 100% Lenzing Tencel Lyocell denim tank with a square neckline, button front closure, and scallop trim detailing throughout. SIZE CHEST SHOULDER TO HEM XS 17 3/4 18 3/8 S 18 3/4 19 M 19 3/4 19 5/8 L 20 3/4 20 1/4