Mia walking around a dinosaur at the park. Mia will be one year next month and can take up to 5 or 6 steps at a time. She weighs 26 pounds and is wearing 18 to 24 months. I have recently started having to remove some of her winter size 18 month clothes because she has outgrown them. I am suprised when I put on her 24 months and 2T clothes and they fit!