This is a MARS model manufactured by Patagonia for the US military. MARS stands for "Military Advanced Regulator System." This series was delivered to the US military and is not usually available to the public. Patagonia MARS products are for military use and are not included in the general Patagonia catalog. They are made for the US military, especially special forces, operating in extreme environments, not for general sale. The MARS series is divided into categories: Level 1 (L1), Level 2 (L2), Level 3 (L3), Level 4 (L4), Level 5 (L5), Level 6 (L6), Level 7 (L7), Level 8 (L8), and Level 9 (L9). Level 1 is the first layer, Level 2 is the second layer, Level 3 is fleece, Level 4 is a wind shell, Level 5 is a soft shell, Level 6 is a hard shell, and Level 7 is a cold shell, etc. This item is a Level 6 outer layer. Measurements are approximate, please use them as a reference. Size: S Width (pit to pit): 63.5cm Length (neck point to hem): 78cm Sleeve length (neck point to cuff): 91cm Color: Alpha Green Material: GORE-TEX NYLON Please ask any questions before bidding. Please contact us through the question section for price negotiations. We are also selling a valuable new M size. Please check it out if you are interested.