I purchased these Hotcott maternity leggings from Belle Maison. Based on my own research, they're a great product, second only to Wacoal. They were gentle on my skin, even with severe morning sickness and sensitive skin. Made of natural materials, they kept me warm and comfortable – they were the best leggings! I still use the tops, and I think the fact that they don't easily generate static electricity is due to the cotton. Even in early spring when people start wearing lighter clothing, my legs and belly stayed warm. They're also comfortable and easy to move in, making them great for loungewear or pajamas! I rotated through several pairs, so I probably wore these about 10 times.