I get these great plastic pants on Ebay from a seller named yu-yun. The pants come with a tag that says 'AMASS'. They have great fit and texture, but the side seams come apart if you wear them every day.
Well I've discovered that a little vinyl adhesive does a great job repairing vinyl seams that have separated. Even better, I've discovered that applying the same vinyl adhesive to the seams of a new pair of plastic pants prevents the seam from separating. I'm psyched because I love these pants except for the fact that they tend to come apart at the seams. A little vinyl adhesive to re-enforce the seams has increased their usable lifespan tenfold.
Hope you all find this useful ! ! !