There are 3 different packs of underwear here for toddler boys, size 2T/3T. The two packs of 6 are potty trainers with a thicker front panel and no fly front. One pack are briefs style pants and have a comfortable elastic waistband. They were made in Vietnam and are 100% cotton, except for the interior absorbent layer that is 100% polyester. These are really cute and feature various colors and patterns that any toddler boy would enjoy. The absorbent padding goes up the seat about halfway. The other pack of 6 are boxer briefs, also with a comfortable elastic waistband, also made in Vietnam, and with similar construction, except that the absorbent padding goes all the way up the back. The ideal fit for these is 28-33 pounds and 21-22 inch waist. The other 4 are 100% organic cotton boxer briefs in stylish colors and patterns. These are regular underwear, so double-fabric fly fronts and covered elastic waistbands, so when potty training is over or seems to be going good, you can try these. Two have neat pattersn and the other two are plain green briefs.