Waterproof and breathable Gore-Tex navy blue jacket with internalised hood and reflective safety strips. British Royal Naval issue and so made to face the worst weather the oceans can throw at it. This dark blue waterproof jacket is made from Gore-Tex material, which allows sweat in the form of water vapour to escape the coat, while keeping out rain and wind. This jacket is lightweight and is designed to be worn as an outer shell over thermal clothing British Military Surplus Jackets & Shirts consist of two measurements. The first refers to your height in cm and the second refers to your chest size in cm. Please see our chart below which are approximate conversions. please note sizes this is only a rough guide as it depends on who's washed it etc Nato Size (Height/Chest in cm) Fit Height Chest Size (Inches) 170/88 Short 5' 5" - 5' 8" 35" 170/96 Short 5' 5" - 5' 8" 38" 170/112 Short 5' 5" - 5' 8" 44" 180/92 Regular 5' 9" - 6' 36" 180/96 Regular 5' 9" - 6' 38" 180/104 Regular 5' 9" - 6' 41" 180/112 Regular 5' 9" - 6' 44" 190/96 Tall 6' 1" - 6' 4" 38" 190/104 Tall 6' 1" - 6' 4" 41" 190/120 Tall 6' 1" - 6' 4" 47" Grade 1 This means that although they have been used, they show very little signs of wear and are still in great condition and ready to go. some may have wire removed and have flashes on the arms Grade 2 These are still in good condition but may be showing larger signs of wear e.g. there may be a small hole or a broken zip. This is reflected in the price