Our Warriors Steel Breastplate is crafted from 18 gauge steel and can be worn with or without a backplate. There are buckles attached to the armour and leather straps that come with the breastplate to make it wearable without a backplate. If you are wanting to wear this breastplate with a backplate it is compatible with the steel Backplate for Warrior or Drake and will also work with our Leather Backplates. This breastplate is lined with a thin layer of leather which is a nice extra and makes it that much more comfortable to wear. With a simple row of studs along the edges, this armour fits just about any period for any character. These are measurements of the armour only, these measurements do not include the straps/buckles. Keep in mind that if you are wearing a gambeson or heavily padded shirt, to take your measurement while wearing the garment and order by that measurement.