The Shellback Tactical Trauma Pad is a non-ballistic, foam padded plate designed to be worn in conjunction with and behind your soft or hard armor plates for added protection. This trauma pad creates an additional layer of padding that reduces energy transfer and protects your body from pain caused backface deformation. Shellback's Trauma Pad has a 10"x 12" SAPI Cut shape with a thinness of only 0.25", weighing in at a light 6 ounces.