A quick overview by Pale Horse Concepts of their TAC Inner Belt Mk4. This is a safety belt designed to be used as a traditional HRST belt. It can be worn as a standalone inner belt, or combined with an outer belt for added security. The tubular nylon material can be stored inside the running end's integrated belt loops. Available in nine-inch size increments, the Mk4 TAC inner belt is sized based on your typical pant size.