Size : 5cm Backing: Hook Material: 100% High Grade Emberoidery Or Rubber You can see from the picture that this custom patch,rubber Or Emberoidery patch,pvc patch,military patches,medical patch,custom 3d rubber patch,tshirt patches,flag patch,3d rubber patch,Canadian military patches,custom patches,3d pvc patch,military patches wholesale, patch hat, product is very well designed.Construction is very durable and will not wear down easily.Looks really cool, nice and thick, don't have to worry about it being damaged on the outside of my backpack. Quite Good for Your Bag,Cap,Jacket or Accessories. This Quality PVC Or Emberoidery Patch is Really Great for military Kit and Apparel and Jacket,Cap,Backpack,etc.Hook backing to secure onto loop patch on uniforms, helmets,outwear or fleece jacket sleeves, tactical vests,bags, backpacks, etc The origins of morale patches trace back to the fighter plane nose art of World War I. During the Vietnam War, units often created ironic, humorous morale patches.