Is this for Real?

My 29 month old and 3 month old technically wear the same size diaper. Unbelievable! I was deciding whether to move up a diaper size with David the other day and realized the Huggies size 3 diapers are made for 16-28 pounds. Both of my kids fall in between that range. I've still got David in size 2 and Mikey in a size 4, but really, this seems so strange. If I wanted to I could buy one box of diapers for both a 3 month and 2 1/2 year old.