Dec went into 3-6 at christmas time so he was about 2 months, then he went into 6-9 round about the time he got christened so 4 months, he went into 9-12 at about 6 months, then 12-18 at about 10 months, some 12-18 still fit him now at 16 months but alot of his stuff is now 18-24.