HEATTECH EXTRA WARM black spats, size 110. Uniqlo Last year, my child wore these under their school pants. The knees are thin and stretched, and you can faintly see the skin through them. For home wear or as an underlayer, I hope someone can use them (^o^) - Brand: HEATTECH - Size: 110 - Color: Black - Features: EXTRA WARM Thank you for looking.