Trousers. Tag is on outside. Material is soft, lightweight twill, not like Belgian Brushstroke material. Pockets are actual pockets and can hold objects. Items in the pattern were used in decolonization counterinsurgency wars after WW2 by Britain, France (“Peau de Saucisson”), Rhodesia, and many others.
French Paratroopers in Algeria (1959):
Rhodesian SAS (early 1960’s):