Nylon self adhesive repair (peel and stick)Self adhesive Water resistantSuitable for Down Jackets, gilets, tents, eeping bags, etc.It& 39;s really important that you follow the instructions (as per the picture) to make sure you get the best results.Please note: These aren& 39;t guaranteed to work on all types of fabric. As you can hopefully appreciate - there are 100& 39;s of types of fabric and this is one type of patch.They& 39;ve worked on my Rab jacket and also a number of test fabrics. The last few pictures show them adhering after 6 months on a sample piece of nylon material.that patch has been in place for over 2 years.However, they do struggle with highly waterproof fabrics (i.e. where the water bubbles on contact with the fabric and doesn& 39;t soak in).The intent of the product is to offer a cheap alternative to replacing a jacket (i.e. ~3 as a fix, rather than 50 - 200 on a new jacket or gilet.My offering is to provide a number of colours for a cheap price and to offer a fix for down jackets. As per the above, this isn& 39;t guaranteed to work on all fabrics, so please sense check whether you think the patch would adhere.Patch sizes:The round sizes are approx:1x 5 cm / 1.96 inches1x 4 cm / 1.57 inches1x 3 cm / 1.18 inches1x 2 cm / 0.78 inch1x 1 cm / 0.39 inch,The oval sizes are approx:1x 6.2 x 4.5 cm / 2.44 x 1.77 inches,1x 5.7 x 3.8 cm / 2.24 x 1.49 inches1x 3.5 x 1.5 cm / 1.37 x 0.59 inch"