Lululemon Size 2? Brown Racerback Knit Tank Cotton

Condition: *Missing tearaway hang tag with size and fabric info. Light wear throughout. No other issues. Size: My best guess is a size 2. Please check measurements prior to purchase. Color: Brown Design: Knit sleeveless racerback tank Materials: Unknown; feels like cotton or cotton blend to me. Measurements (approximate) Bust: 31" around Waist: 34" around Shoulder to Hem: 23.5" *TnY2