Barbour medium 3897cm chest reg length navy blue casualcountry border treated cotton jacket measurements 38 chest size armpit to armpit 42 equals a 4 chest tolerance 25 outside sleeve length 36 length from nape to hem material hard wearing medium weight sylkoil thorn proof and waterproof treated when new cotton at least 85 material outer shell warm barbour tartan check cotton 100 lining drip strip nylon 100 inner lining features two way br