I want to order a fleece jacket for Xander for the car. I can get it in 18-24 or 2T. He's currently 19 months and wearing 18 month clothes and doesn't seem like he's going to grow out of them soon... but I want to make sure whatever I get him will last the whole winter (so it needs to last until around April probably). He'll turn 2 in late February.

Thoughts?

ETA: Last winter I got him the jacket in 12 month and it fit him all winter!