This is a Nike Fit Dry Polo tank from Wailea golf course on Maui, Hawaii. It is a size medium and measures about 19" from armpit to armpit and 24" from back center neckline to bottom. Pre-owned Please reach out to us with any questions. If you need to sign up for Poshmark, use MAKEMYDAY808 as the invite code to receive a $10 Posh credit. CB21