I don't know what these are , they might be cadet trousers as the tags a little worn where it tells you. 

These are a halfway house between 1960 and 1968 pattern. 

Size :

82/941/12

38 inch waist 
32 inch inside leg 

Condition :

used 

cargo pocket button missing - faded white mark on knee 

Features :

2 x hand pockets 
1 x rear 
1 x cargo
fully lined