FreshService
FreshService POLARTEC Fleece Easy Pants (Khaki)
It's made by Thermal Pro which is light weight and warm at the same time.
100% Polyester. Made in China
Size Guide
Size F : Waist 76-96 (Adjustable) / Rise 39 / Length 109 / Leg opening 28
Model is 177cm, 68kg, wearing a size F.