No size listed on tag however it looks like a small (will post measurements if requested) Fit: Fitted; pullover style; scoop-neck; open back Features: Smooth, soft fabrication; compressive feel; sweat-wicking; low-impact support; underbust detail; side paneling; open back; wide straps Machine Wash Cold 63% Polyamide, 26% Polyester, 11% Elastane