I just tried this on my 4 yrs old daughter. We have no snow yet. I will have to update when she gets to wear it outside. I'm very happy with the adjustable arm/lenghth. It's the first time seeing them with buttons/ hook adjusters inside the snowsuit. I've usually had the adjusters were you must cut for the extra length. This doesn't. Very thin! My daughter can walk around with out looking like a she's going to tip over. It's supper cute and the color is beautiful. It was very easy for her to put on herself and take off. I have great hopes for this suit. She is 46# and I ordered her the 4/5. I do feel she will get two years out of this. That's a bonus. We will see how warm it is when the snow starts falling.