but also an internal button waist adjuster which takes a few inches off each side

Having 4 pockets on each leg

purely for the camouflage

Lightweight & Breathable

giving a tailored fit

Czech / Czechoslovak Army M85 Olive Thermal Quilted Trouser Liner Swiss but also an internal buttonAt a glance Polyester Shell & Insulation Material Unissued, New Old Deadstock Drawstring Waistband Some Cold War Era Rear Vent Button Fly Elasticated Cuffs Warm, Insulated & Comfortable Cold Weather Suspender Friendly Wear Under Any Trousers Buttons Into Czech Czechoslovak M85 Trousers Colour Varies from Solid Olive Green to Solid Green Brown Vintage Militaria Mostly 1990's Dates, Some early 2000s after Czechoslovak Dissolution Mix of Genuine