Sage Kelly green tank with cut out details L

Sage "Kelly green" tank with cut out details L seems to run small . Measurements : armpit to armpit ~ 19.5". From top of shoulder to bottom hem ~ 22.5". Please see above for measurements ...97% nylon 2% spandex . Cute piece to wear over a sports bra, Pretty color for ST Patrick's day , spring , summer , yoga . Retails for 45.00. Appears to run small please see measurements. Thank you