These trousers are a rough knockoff of the Crye G2's, printed in the Japanese Ground Self Defense Force's (JGSDF) Type 2 camouflage pattern, a pattern very similar to the German Bundeswehr's Flecktarn.

There's no manufacturer tag, but these are likely Japanese or Chinese made.
These are not genuine JGSDF issue trousers, they are a commercial product.

They feature:
-Button waist with brass zipper fly, made by YBS
-Hook and loop adjustable waist tabs
-x2 hook and loop closed thigh cargo pockets
-x2 hook and loop closed slanted rear pockets
-Knee and seat reinforcements
-Hook and loop knee pockets for adding foam knee padding (I am providing two black foam pads that are slightly too large for the pockets, but can easily be trimmed down or replaced as desired)
-Nylon ankle cuff cinches

The only tag is a simple "M" size tag, measurements are as follows:
Waist: 34" (Can be cinched tighter)
Inseam: 30"

Great utilitarian trousers in a seldom-seen camouflage pattern for airsoft, paintball, or exploring outdoors!