A jumper like this

the FAD name has stuck

The entire front is fastened shut with velcro

Button In Liner

There's ample storage for this little vest with a pocket on the front and back too

British Army / Tri-Services Navy Blue PTI Tracksuit Top Jacket - Medium 160/92 Skirts A jumper like thisAt a glance Polyester & Cotton Blend Material 2 Zipper Waist Pockets & 1 Zipper Chest Pocket Zipper Front Closure Heavy Duty & Hard Wearing Elasticated Cuffs Funnel Neck Collar Solid Navy Blue Colour Chest Size: 44" Suggested Size: Medium Slim Label states "92"cm Sleeve Length: 19. 5" X Short Label suggests a height around "160"cm Collar to Hem: 24" Current Issue Militaria 2010's Onwards Genuine British Royal Air Force, Army & Royal Navy Surplus