So my littlest child is 11 months old and wearing size 18month clothing, and size 24 month for the sleepers for the length and foot size. I came across a shirt of his that I thought I got rid of months ago. A size 6 month onsie. Nothing special about it. It’s hard to explain this attachment to little things that our babies have worn. Time is just so fleeting. Snuggly those babies tight, soak in that smell, it goes so fast, even when the days feel so long.