Most wetsuits come with a great warranty, so if something happens to a wetsuit seam, make sure you aren't still within the company's warranty time frame before starting to think DIY wetsuit repair. If you do your own repairs, it will void any manufactures warranty on the suit. If you are outside of your warranty time frame, or the break in the wetsuit is caused by something non-manufacture related (like a fin cut, rock abrasion, etc.)then a can of Neoprene cement can do wonders for extending the life of your wetsuit. Make sure the wetsuit is completely dry before working on it!