On a few of our messenger bag styles that are intended for more active use, we include anchors for a T-Strap. This is an additional load stabilizing strap that runs from the main strap down to the corner of the bag. It prevents it from walking around to the front of your body when riding and stabilizes larger and heavier loads. The T-Strap is included with the Dravus and is available as an add-on item for the Pike and Haversack, which include the anchor points needed to mount a T-Strap.