Barbour size medium 40102cm reg length rustic brown casualcountry gamefair treated cotton jacket measurements 40 chest size armpit to armpit 44 equals a 4 chest tolerance 24 outside sleeve length 34 length from nape to hem material hard wearing medium weight thorn proof and waterproof treated material cotton at least 85 outer shell warm barbour tartan check cotton 100 and nylon 100 inner pockets and inner cuffs features two way branded zip fast