Although it's new and unused, the paper packaging is torn. Please check the photos. These are 300-denier and warm. Here's the description from the website: This is a cotton-blend tights series from SchooLog, an original brand for kids and juniors. These are thick, cotton-blend tights for children that are gentle on the skin. They have a front closure, so they can be used by both boys and girls. The biggest appeal is the warm, thick fabric, equivalent to 300 denier! They are not only warm but also comfortable to wear, and are a very popular product every year as a winter cold protection measure. (The unit "denier" is a unit of yarn thickness, so the weave and fabric thickness may vary slightly depending on the manufacturer.) ◆Materials/Processing 46% cotton / 26% acrylic / 25% polyester / 3% polyurethane Antibacterial and deodorant treatment / gusseted / front closure Waist elastic cannot be replaced ◆Country of manufacture Planned in Japan, made overseas