LittleForBig feature adorable prints and bright colors just like real baby onesies! Our prints and patterns are all upsized for adults so that you can look as little as you feel.LittleForBig adult baby onesies are made of 100% soft organic cotton that stretches to fit many body types. Unlike other brands, LittleForBig products are made to hug the body for a snug and secure fit. A row of 3 press Buttons secure the onesie at the crotch, providing plenty of support whether you wear a diaper under your LittleForBig onesie or not.Sizes are close to standard T shirt sizes.Available sizes small (S) through 2X large (XXL).PLEASE TAKE THE TIME TO MEASURE FOR YOUR SIZE. The most critical measurement is the "Length" which is best measured with a cloth measuring tape while wearing a t-shirt and diapers. Start at the collar in back running down the back and through the legs over the diaper, up to the collar in front. Divide this measurement by two and compare to the listed length. All items are shipped in discreet packaging.