Material: Polyester, Spandex, Cotton
The shorts are very stretchy
 
Size Chart
S        Waist: 60-82cm/23.6-32.3"      Hip: 86cm/33.8"           
M       Waist: 64-84cm/25.2-33.1"      Hip: 92cm/36.2"
L        Waist: 68-88cm/26.8-33.9"      Hip: 98cm/38.5"
XL      Waist: 72-92cm/28.3-34.6"      Hip: 104cm/40.9"
2XL    Waist: 76-96cm/29.9-35.4"      Hip:110cm/43.3"
3XL    Waist: 80-100cm/31.5-36.2"      Hip:116cm/45.6"