
I'm not sure why it's called a thermal jacket. Yes the shirts have a thumb hole and you can layer them, but not sure why it's warm. It is not 100% cotton as stated in the description but 60% cotton and 40% polyester. We used this on our recent fall trip and put on a t shirt and my 4 year old felt nice and warm. The kitty print is cute and the 2-pack is almost $20, so it's not exactly the right fit. It is easy to clean and requires minimal maintenance.

ESTEEZ Girls Layering Snug Tshirt: Long Sleeve Basic Soft Cotton Casual Delight
43 Review

Amazon Brand Sleeveless Chambray Multi Dots Girls' Clothing
62 Review

Adorable TABNIX Toddler Little Girlsβ Short Sleeve T-Shirts: 4-Pack Graphic Cotton Tops for Size 2-7 Years
44 Review

Kid Nation Short Sleeve Crew Neck Heather Girls' Clothing for Tops, Tees & Blouses
52 Review

C9 Champion Girls Supersoft Bright Girls' Clothing and Active
46 Review

Tommy Hilfiger Girls Crop White Girls' Clothing
54 Review

Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review

Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review