Lululemon Back In Action Tank Lilac Quartz

Lululemon Back In Action Tank Colour: Lilac Quartz Size: Unsure, see approx measurements below. Guessing a 4 or 6. Normally I wear a 6/8 in BIA sleeved shirts but I find this fits smaller than those sizes. Style Number: W1ARZS Material: 92% pima cotton, 8% Lycra In very good pre-owned condition. No stains, holes, or pulls. Selling because I would prefer a larger size. Approx measurements (laid flat): Pit to pit: 18" Length, front, shoulder to hem: 24" Length, back, shoulder to hem: 27" Width across hem: 19"