Lululemon Racer Back Tank Top Size M?

Lululemon Racer Back Tank Top Size S/M? Lulu 4 or 6? My daughter cut the tag out but measures: Pit to pit approx 15 1/2” plus stretch Length 28” Racer Back Heathered Pink color Great Condition Just cleaning out some closets. All items come from our personal closets (mine or my 3 daughters) and are gently worn with no flaws. Feel free to ask questions or make offers! Bundle to save on shipping! Bundle 3 items for 20% discount Thanks for looking! 🌺🌺🌺🌺🌺