US Army M-45 Field Trousers Vintage Military Used Clothing The M-45 Field Trousers are field pants adopted by the US Army in the late 1940s, and are a highly popular masterpiece as a vintage military item. They are also known as M-1945 or M-45 Field Pants. They are the predecessor to the M-65 and M-51, which have cargo pockets. The condition is relatively good, as you can see from the color of the fabric, indicating that it hasn't been washed many times. There are some areas where the stitching is frayed, possibly due to the use of cotton thread, but it's within a range that doesn't affect wear. Size: w30 Waist: 38cm Rise: 38.5cm Inseam: 74cm Leg Opening: 25cm