Read the reviews from others who had purchased Kenyon K-Tape for Ripstop and everyone said it was perfect for their repair needs, so I bought it. The package arrived in a few days. The directions are simple and straight forward. I just took my time to make sure to cut the size I needed to correctly fit the rip, and made sure the sleeve of my jacket was smoothed-out so applying the tape was even all around the patch. The result was a perfect patch, and I'm thrilled that my Columbia jacket is as good as new and the patch is barely noticeable. (I'll hand wash my jacket from now on because my washing machine can be a little rough.) If you need to patch anything nylon-y, get this stuff -- it's a great product!