The downside of baby wearing a onesie is that it’s inconvenient in winter. The biggest advantage of the onesie is convenient, easy to keep warm, and no matter how the baby’s activities are not easy to take off, the disadvantage is that when the weather is cold, if you wear a onesie with long pants, changing diapers may be a little bit of trouble; if in the summer, short-sleeved shorts onesie, changing diapers is definitely more convenient than the split pants, undo the buttons wrapped around the buttocks can be directly operated. The downside of wearing a onesie is that it requires a better fit. A onesie with socks is best for keeping warm, and the legs don’t move up and down with movement. But the disadvantage is that the size fit requirement is higher, if the clothes are on the large side, it is impossible to pull up the hem of the pants, the end of the baby’s foot will show a section of empty socks, resulting in the clothes moving up and down, if the clothes are on the small side, there is no way to wear them at all, unless the sock part is cut off. Clothes without socks attached, on the other hand, can be solved by wearing a longer pair of socks that tie around the side of the pants leg.