I bought this for my son from Costco and I LOVE it!! Its been one of my favorites all fall and winter, I may even buy it again in a larger size next fall lol My son looks absolutely adorable in this and gets compliments every time he wears it :) Bought the 9mo size when he was 6mo and its fit since then and still fits, in the pic Ive included hes 9 1/2mo old but is wearing different pants and onesie than the ones it came with. The onesie is about a size larger than the vest and pants so hell be able to wear that longer than the rest of the set.