Lululemon Runder Under Long Sleeve Top Reversible Wear 2 Ways! EUC

I don't know the size but looks like a medium to me. PTP 17.5 inches Key features reversible for two looks in one supersoft Running luon (aka Rulu) is inherently moisture wicking contoured hemline with bum coverage flat seams won't rub you the wrong way - give chafing 'ell! no need to fiddle, thumbholes help keep your sleeves down while you run Tech specs designed for: run fabric(s): Rulu™ properties: reversible, moisture-wicking, flat seams, chafe-resistant fit: fitted length: hip