both within various militaries and the commercial market

This design is still in use today

Internal Waistband Button Adjusters

Current issue military surplus from the British Army

British Royal Air Force RAF Poly-Cotton Work Coveralls - Medium 180/100 Czechoslovak both within various militaries andAt a glance Polyester & Cotton Blend Material Velcro Front Closure 1 Chest Pocket & 1 Large Hip Pocket Velcro Adjustable Trouser & Sleeve Cuffs Heavy Duty & Hard Wearing Velcro Waist Access Slits Elasticated Back Waistband RAF Chest Patch Shoulder Epaulettes Solid Grey Body with Contrasting Blue Collar & Epaulettes Chest Size: 42" Suggested Size: Medium Regular Label suggests a chest around "100"cm Sleeve Length: 25. 5" Long Label suggests a height