MADI's viscose from bamboo undies hold a two-way added stretch for maximum comfort.  We don't use elastics, preventing pinching and muffin top action!  We've received and acted on feedback from customers about size/fit.  If you are unsure which size will work best for you or a friend you're buying for, email us: info.madiapparel(at) and our team would be happy to assist you with your purchase!