US Patent 11533959 Inner duty belt and related system

The disclosure concerns an inner duty belt and related system. The inner duty belt has an inner side and an outer side, and includes a waist portion having a first touch fastener coupled to the outer side, an attachment portion having a connecting element configured to engage with the waist portion, and a flexible portion disposed between the waist portion and the attachment portion. The flexible portion is configured to fold upon convergence of the waist and attachment portions. The flexible portion of the inner duty belt allows the inner duty belt to easily increase and decrease in circumference while engaged with an outer duty belt.