Main thing to note aside from the various markings across the piece is a small hole on the one pocket

Sleeve Length: 24" / Regular - Label suggests a height around 170cm

Sleeve Length: 26" / Long - Label suggests a height around 6 foot 1 inches

the previous owner removed their regimental buttons so new ones will be needed

Chest Size: 52" | Suggested Size: Large Regular - Label suggests a chest around 112cm

British RAF GP Bomber Jacket w/ Thermal Liner - Large 112XL Combat Shirt Main thing to note asideAt a glance Wool & Polyester Blend Material 2 Waist Pockets Zipper Closure Shoulder Epaulettes Elasticated Cuffs & Waistband Detachable Thermal Liner Turnover Storm Collar Classic Air Force Blue Colour Pit to Pit: 25" 63cm Suggested Size: Large Regular Label reads 112cm 44" Sleeve Length: 27" 69cm X Long Label suggests XL length Collar to Hem: 29" Modern Militaria Issued Early 2000's Genuine British Royal Air Force RAF Surplus Grades Grade 1 In good