T-shirt fits perfectly. I bought the 4T for my slim 4 year old. You want to go taller if you have a bigger child or know their head is slightly larger than average. My poor child can hardly get it in the hole. I had to stretch it as far as I could with both hands and then do it as fast as I could. She didn't like it. But when it's on, it doesn't fit that well. If it was part of her wardrobe I wouldn't keep it to myself. But it's perfect for the DIY Halloween costume I'm making for her.
Boys' Pullover Crewneck Sweater by Amazon Essentials
41 Review
π Organic Cotton Boys' Sweater - Hope Henry Clothing for Sweaters
34 Review
Brushed Boys' Clothing: Gioberti Knitted π Cardigan Sweater in Sweaters β Improved SEO
40 Review
Boys' Spot On Style: Spotted Zebra Pullover Crew Sweaters
61 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review