Tracy sibole^This product is sized WAY too small- at least the 2XL. I wear an XL&amp;#44 but I got the 2X just in case it was sized small. The 2X is more like a medium or large. I have included a photo. The tan shirt underneath is XL and the top shirt is the one that is supposed to be 2X.~3|Amanda Rochelle^I ordered a women's medium and received a men's medium. I based my order off the reviews of running small in women's size so I was disappointed my order wasn't correct. However the shirt is really cute.~3|Duncan Lewis^Science did help!~5|Amazon Customer^I wear a large usually&amp;#44 so I bought an extra large to be safe. It fits like a medium almost.~3|rSquare^Very soft&amp;#44 fits as expected. Screen print wears well with normal wear and through washes.~5|G. Webb^I bought this as a gift &amp; it was very well received. Size is correct &amp; it looks nice.~5|Amazon Customer^What's not to like about Neil Degrasse Tyson?~5|Lisa W. Markow^Awesome.~5|KL^Fits great!! Didn't shrink!????~5|Jax^A fun shirt!!~5|