This is a regular material but it's smaller than usual so if you're lucky go up a size to fit! I have nothing to do with my three children so I had to return them.
Amazon Brand Sleeveless Chambray Multi Dots Girls' Clothing
62 Review
Kid Nation Short Sleeve Crew Neck Heather Girls' Clothing for Tops, Tees & Blouses
52 Review
Shop the Comfy and Tag-Free Kid Nation Crewneck T-Shirt Collection π for Girls! Top-Notch Clothing, Tops, Tees, and Blouses for Your Little Fashionista!
45 Review
Spotted Zebra Girls' Short-Sleeve Flutter T-Shirts: Amazon Brand for Fashionable Kids
43 Review