Nylon self adhesive repair (peel and stick)Self adhesive Water resistantSuitable for Down Jackets, gilets, tents, eeping bags, etc.It's really important that you follow the instructions (as per the picture) to make sure you get the best results.Please note: These aren't guaranteed to work on all types of fabric. As you can hopefully appreciate - there are 100's of types of fabric and this is one type of patch.They'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'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'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",