The Double D Panel by Maxpedition® is a Hook-&-Loop modular zipper pocket, with D ring attachments. This attachment is 4.5 by 3.25 inches.
Maxpedition® packs and bags feature a lot of loop fields. These loop fields provide the opportunity to add attachments to provide the customization and organization within those packs. The Double D Panel is one of those add-ons with the hook field on the back for easy attachment and adjustment.