In the winter, I bought long-sleeved pajamas and pants, thinking it would be a similar material. These pajamas are made of firm material and run very small. I went with the size chart and enlarged and they were still snug fitting.
Amazon Essentials Snug Fit Pajamas - Stylish Boys' Sleepwear & Robes Collection
44 Review
Snug-Fit Cotton Pajama Sleepwear Sets for Kids featuring Disney, Star Wars, and Marvel by Spotted Zebra
54 Review
π Mud Kingdom Toddler Collar Pajama: Stylish Boys' Clothing for Comfortable Nights
45 Review
VAENAIT BABY Kids' Soft and Comfy Modal Tencel Sleepwear Set for Boys and Girls - 12M-12Y, Shirring Solid Pajamas
46 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
π Bold Pack Sleeve Active Hoodie Sweatshirt Set for Boys' Clothing - Stylish and Comfortable!
47 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review
Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review