City Threads Union Suit Thermal Underwear is a high-quality, made-in-USA product designed for both boys and girls. It features a soft cotton/poly blend that offers warmth and breathability, making it ideal for lounging and layering.

Parents have praised the fabric for being exceptionally soft and suitable for children with sensory issues. The thermal underwear is lightweight yet surprisingly warm, perfect for cooler weather or as pajamas.

However, sizing can be tricky. Several reviews mention that the suits run small, especially in the torso area. It's recommended to size up by one or two sizes to ensure a comfortable fit as children grow.

While the fabric is generally well-received, some parents noted that it tends to pill after a few washes. Additionally, the presence of polyester in the blend was a minor drawback for those preferring all-cotton materials.

The design includes large buttons that are easy for kids to manage independently, enhancing their sense of independence. The stitching and overall quality are excellent, promising durability through multiple washes and wear.

In summary, City Threads Union Suit Thermal Underwear is a great choice for parents looking for comfortable, durable, and stylish thermal wear for their children. Despite minor issues with sizing and fabric pilling, its benefits like softness, warmth, and ease of use make it a worthwhile purchase.