I bought these Adidas leggings in Hawaii a few years ago. The material is cotton. It's a warm material, so it's best for fall, winter, and spring. It might be too hot for summer. Please check the images as there is some fading. Only those who can accept this, please purchase. The stretch isn't very noticeable (not stretchy). Size is XS. Inseam: Approximately 67 cm Waist (laid flat): Approximately 27 cm