but does have prior field use and appears to have some small whiter parts

Adjustable Cuffs

Specialist 1st Class Award Badge

Collar to Hem: 30"

Chest Size: 44" | Suggested Size: Medium Regular - Label states "48" which suggests a British 38" chest

British Army PT Windbreaker Jacket - Medium Finnish but does have prior fieldAt a glance 100% Nylon Shell 100% Polyester Insulation 95% Polyester & 5% Spandex Sleeves 2 Waist Pockets & 1 Chest Pocket Zipper Closure Hooded Excellent Windbreaker Elasticated Cuffs & Waistband Embroidered ARMY Patch Reflective Sleeve Stripes & Back ARMY Patch Sage Grey & Black Colour Pit to Pit: 20. 5" Suggested Size: Medium Regular Label reads M Sleeve Length: 24. 5" Regular Collar to Hem: 27" Modern Militaria Issued 2020's Genuine British Army