I am selling these items because my older child's preferences have changed, and they can no longer wear matching outfits. The main body of the garment is 100% cotton against the skin, and the ultra-stretch material is highly flexible and easy to move in. - Sizes 80-100 have shoulder snap buttons. These items are new and have been stored without being removed from their packaging. When shipping, I will remove them from the bag and repackage them, so please be aware of this before purchasing. ⚠︎ Although these items are new and unused, they have been stored at home, so please refrain from purchasing if you are sensitive to this.