at only $3 per shirt this was a bargain!!  the smallest available when I ordered was size 4 and my son is tall for only 22 months so i took a chance......they did shrink some the first time I washed/dried them and had they been only size 2 i would have been in trouble.  i did purchase another package of 3 shirts that were also toddler fruit of the loom (batman, green lantern, spiderman logo shirts) from amazon that are also size 4 and they did not shrink as much but still fit my so well.  i would definitely say that they run small but they are holding up well and are super cute!! love that they are the characters without being obnoxious and busy, they are cute like a vintage T.  love them!!