Haley Strategic Partners D3CRX, Chest Rig, Gray, Nylon D3CRX-1-1-GRY The Disruptive Environments X Chest Rig (D3CRX) was purpose built for patrols and reconnaissance missions where a lightweight rig with more storage capacity is needed for carriage of essential equipment without sacrificing maneuverability in urban, vehicle, and other confined spaces.