My 2 year old is tall for his age. He wears 3T and 4T clothes. But I know these pajamas always run small. They are designed for a comfortable fit. I bought size 5 for my 2.5 year old son. Fits perfectly. Not too tight, enough freedom. They got a little tighter after a few washes, but they fit perfectly. I recommend getting at least 1 size bigger. Also good quality.
Amazon Essentials Snug Fit Pajamas - Stylish Boys' Sleepwear & Robes Collection
44 Review
π The Children's Place Kids' Holiday 2 Piece Cozy Cotton PJs
43 Review
Snug-Fit Cotton Pajama Sleepwear Sets for Kids featuring Disney, Star Wars, and Marvel by Spotted Zebra
54 Review
π Snug-Fit Sleepwear for Boys: Amazon Brand - Clothing, Pajamas, and Robes
55 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
47 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review