Lululemon top XS/S workout shirt short sleeve medium meant to move tee seriously light luon ***STOCK PHOTO is more navy Heather, mine is more black/gray Heather**** As this was a store return, the tags were cut out, so sizing is guesstimated, but based on measurements, it would appear to be XS/S in Lululemon sizing. Armpit to armpit is approx 16” and top of shoulder to bottom is approximately 21”. Check out my other Lulu listings and Bundle 2+ for the best deals! 🌟💰New to Poshmark?? Use my closet name — ClosetCaper777— as your referral during sign up for $10 off your total! 🌟💰 (NOTE: When laundering clothing items, I use a combination of Tide Hygienic Clean detergent & OxiClean Laundry Sanitizer, as well as scented Arm & Hammer dryer sheets. If you have an allergy or sensitivity to fragrance, keep this in mind. However, this is a pet free and smoke free home.)