Lightishweight, grey nylon trousers by comme des garcons homme (1999). They have a zip front, slash pockets at the sides, and patch pockets at the back. Wideish straight leg cut. Fabric is less shiny / more matte than you'd usually expect from nylon materials.

Size S (mens/unisex)
Check measurements to confirm fit
All measurements taken flat

Waist (circumference): 85 cm
Front rise:
 29.5 cm
Thigh width:
 29 cm
Total length: 98 cm
Inseam length:
 73.5 cm
Cuff width: 23.5 cm

100% nylon
Made in japan
1999