I havent had that problem, but I have my stitching come loose from my knee to my crotch, and my eyelets have come loose as well as a faulty zipper on my jacket. I have the grey suit. I have used it maybe 30 times. I icefish a lot, but I have a pair of their black insulated bibs as well that I use when its warmer out. You could try a wader patch maybe?? Depending on the material where the knee is ripped.