Sweet Mommy Fleece Lined Maternity and Nursing Turtleneck Top Fabric information: Stripes print: Polyester94%, Polyurethane6%. Black and Navy: 49%Cotton, 40%Polyester, 9%Rayon, 2%Polyurethane; other mono colored: Cotton95%, Polyurethane5% Affordable Warm Maternity and Nursing Turtleneck Long Sleeve Top. SLIM FIT US Sizes Recommendation: S 0-2, M 2-4, L 4-6, XL 6-8. BUST Measurements in inch: S 31-35 M 33-37 L 34-38 LL 36-40. Plenty of belly room, very stretchy. Easy nursing access.