Straight Black pants with side pockets, 2 front pockets and belt hooks

It seems that few designers collaborated in making this great pants with side pockets. The material is wonderful- it seems that it's a combination of rayon, elastin ( since there is a stretch to it) and viscose. The waist is 26" Length of pants is 42" Inseam close to 32" In excellent condition- never really worn. Bought in Europe.