Premium ProModal custom fabric. NO frills. This is your classic, smart, eco-friendly Yoga & Pilates pant with tall waistband & a touch of Lycra - w/no extra elastic to dig in to your skin: the most comfortable pants you will ever wear. ProModal naturally wicks 50% more moisture than cotton; made from Beech wood & Eucalyptus from sustainable tree farms. (S:2-6, M:6-10, L:8-12).