My chest is 38", according to the size chart, I order a large size set. Unfortunately the top is unable to close buttons. I think that size marked Medium maybe is OK. Material is good for this price. Pant size is OK. But I return them.<a data-hook="product-link-linked" class="a-link-normal" href="/Women-s-Classic-Satin-Pajama-Set-and-Sleep-Mask-16-Colors-Prints-Available/dp/B0047EXQF6/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Women's Classic Satin Pajama Set and Sleep Mask, 16 Colors/Prints Available</a>