Superb new Suit Sight infantry Trilux pouch.
Made in the UK by the British defence contractor back in the 90s using Cordura material.

These have press stud lid instead of the loop and strap of the earlier nylon type. Belt loop is on the side of the pouch instead of the back of the pouch. The early nylon type also had this fitting.

Very rare and unlikely there will be any more made now.
Any questions, please ask.