Forlisea Womens Plus Size Halter Tankini Swimwear Swimsuit 2 Pieces Material:83% Nylon/17% Elastane. Comfort and Stylish The size is small you had bettler ordered 1-2 sizes larger than your normal or please reference the detial size on the product description. Size M=US 4-6 ; Size: L=US 8-10 Size:XL=US 10-12; Size: XXL=US 12-14 Size:XXXL=US 14-16; Size:XXXXL=US 16-18