Convert Iron on Patches to Hook and Loop Patches with these Peel and Stick Hook Backings. Available in Multiple Sizes. We only carry these in Black. The package includes 1 Hook Backing measuring 4x1.5 inches. (Loop Sides are not included). Hook and Loop Patches feature the Hook Side of the fabric on the patch and the loop side that is attached to jacket or vest. (Most military style jackets and Vests will have loop fabric installed at strategic locations). This makes it very convenient to add and remove patches to your jacket by simply sticking it on and peeling it off. These Peel and Stick Hook backings feature a super strong acrylic based glue. It is resistant to temperature changes designed for outdoor use.