SUN Outdoor Mountian Bike MTB Shorts Cycling Bicycle Loose Short-Pants SU-A016 80% polyester Material: 80% polyster + 20 % lycra. Reflective brand logo and stripe makes you safe at night. Zipper pockets are for you to keep your belongings. Wide elastic waistband can fit you better. Light, soft, breathable and quick dry makes you more comfortable.