Very warm double layer fleece by Hanna Andersson. size 5 year old. Navy Blue snowpants are size 5 yr but have adjustable straps and likely be fine on a 4 or 6 year old depending on their height. The Navy blue boots are great quality and are size 12. If interested in bundling I can give a great deal on similar sized items all in Navy Blue as well: ultra lightweight rainboots (crocs) size 13 Ralph Lauren Polo snow jacket Navy Blue snowpants are size 5 Navy blue Kamik snow boots size 12 see my other listings:)