As the previous reviewer mentioned, these snap shirts are indeed sized large. The "Newborn" size of these is larger than most 6 month clothing from other manufacturers. Any parent of a new baby knows that much of your time is spent changing diapers and clothing and these snap shirts are incredibly handy in that regard. I started off using the Gerber brand snap shirts which are thinner and not near as good of quality, yet fit my newborn son very well for the first 8 weeks. By then these Snapbasic shirts fit perfectly. They are nice, thick, cute, good-quality, and very soft snap shirts. They have mittens on the hands and are also longer in the body making them easy to tuck into pants when needed. According to the tag they are 100% cotton and made in China.