Gear Aid says about the Repair Patches
A set of 4 repair patches. Suitable for repairing holes and cracks in tents, tarps, inflatable items, sleeping bags, jackets, rain gear etc. This set contains 2 black nylon patches and 2 transparent PVC patches for virtually invisible repairs. Regardless of the weather, these repair patches remain intact and will not peel off or come loose due to sun or rain.