Material:Dacron Feature:Elasticity,Solid Color,Washable,Drawstring Occasion:Going out,Casual,Simple,Sports Seasons:Spring,Summer,Autumn Style:Loose,Classic,Sport Size S (inch) : Suitable Weight (kg) = 15.60-18.53 ; Size M (inch) : Suitable Weight (kg) = 18.72-20.48 ; Size L (inch) : Suitable Weight (kg) = 20.67-23.40 ; Size XL (inch) : Suitable Weight (kg) = 23.60-26.33 ; Size 2XL (inch) : Suitable Weight (kg) = 26.52-29.25 ; Size 3XL (inch) : Suitable Weight (kg) = 29.45-32.18 ; Size 4XL (inch) : Suitable Weight (kg) = 32.37-35.10 ; 1. The Casual Loose Sport Sweatpants are designed for casual comfort and sportswear. 2. They are made with a durable, high-quality materials, such as cotton and spandex.