Viscose Lining

Lightweight & Compact

there's also drawstrings on each trouser cuff

but this could be swapped with one of the stormflap buttons under the collar which isn't so visual

British Royal Air Force No 9 Musician's Dress Jacket - Large Pullover Viscose LiningAt a glance 100% Wool Body Button Closure Engraved Eagle "Staybrite" Buttons Hook & Eye Collar Closure Fully Lined Bullion Thread RAF Eagle Collar Patches "RAF MUSIC" & Musician's Harp Sleeve Patches Corporal Rank Patches Classic Air Force Blue Colour Stunning Golden Piping Decorations Royal Air Force Blue Colour w Black Decoration "UNIFORM, MAN'S, RAF Musicians No. 9 DRESS" Chest Size: 46" Suggested Size: Large Regular Label suggests a chest around