Do you have a tear in a cotton tent, awning or similar? You can easily fix this by sewing it with the 125 meter beige ESVO tent yarn. The tent yarn is water-repellent and consists of a polyester/cotton mixture.
Esvo tent yarns are also called swelling yarn because the polyester/cotton yarn expands when it rains. As a result, the stitching seam will not let water through.