Sweet Mommy Maternity and Nursing Rayon Bamboo Long Tank Top Rayon(Bamboo fiber)95%, Polyurethane5% Affordable Maternity and Nursing Tank Top. Soft and Stretchy! SLIM FIT. US Sizes ratio S 0-2, M 2-4, L 4-6, XL 6-8, XXL 8-10. Size S fits bust 30 inch; size M fits bust 32 inch; size L fits bust 34 inch; size LL fits bust 36 inch; size 3L fits bust 38-40 inch. Plenty of belly room and easy nursing access. rayon fabric allows skin to breath hips covering length tight fit, for fee fir order 1-2 sizes large diverse color pallet stretchy fabric with plenty of belly room nursing access delicate machine wash