British Royal Navy Carinthia LIG 4.0 Thermal Jacket - Medium Field Shirt Looks like the rank was

Looks like the rank was originally for a Flight Sergeant but the metal crown badges have been removed from the sleeves

for a total of 8

Ready to wear but price reflects signs of previous use

some prior use but up for plenty more

The design is really quite straight forward

British Royal Navy Carinthia LIG 4.0 Thermal Jacket - Medium Field Shirt Looks like the rank wasAt a glance 100% Polyamide Material 100% "G Loft" Polyester Lining Zipper Closure 2 Waist Zipper Pockets, 1 Sleeve Pocket & 1 Internal Chest Pocket Excellent Thermal Cold Weather Piece Rubberised Cuffs Drawstring Adjustable Hem Zipper Armpits & Side Vents Lightweight Water Repellent Navy Blue Colour Pit to Pit: 21" Suggested Size: Medium Regular Label reads M Sleeve Length: 26" Regular Collar to Hem: 29" Modern Militaria Dated 2022 Genuine British