Knox Action Pro ShortsKnox Action Pro Shorts These form fitting armored shorts can be worn on their own or layered with other pieces from the Knox seasonless collection. Designed with abrasion resistant materials, this CE approved Class C garment offers exceptional comfort and protection. The shorts are crafted from Sorona Agile fabric by Dupont, an eco friendly fiber made partly from plant based polymers, and feature Knox engineered mesh panels on the inner legs for