Size: 1.97 x 1.97 inches / 5 x 5 cm (aprox +/- 5%), Perfect Size Fits Most. Hook-fastener backing with loop swatch for sewing. Comfortable, the patches can withstand machine washing and drying, easy to remove and wash. These patches are great for outdoor sports and exercise. You can use them for hiking, camping and other outdoor activities. Great Patches Perfect for Jeans,Jackets,Vests,Hats,Caps,Bags,Backpacks,Clothes and more! infrared reflective laser cut patches are designed to be visible only under infrared lighting or at night.