Need help figuring out which Spartan Armor Systems® plate carrier will fit you best? This Body Armor 101 segment provides step by step instructions for determining the proper plate carrier fit. Spartan Armor Systems® offers a variety of high quality plate carriers. Use the sizing chart on our website (button below) to determine if one of our plate carriers will fit you properly. While plate carriers follow a "one size fits most" design, it's important to account for variables such as the use of side plates or atypical body types.