The clear difference between poor quality bed bug encasement products and Bedbug.com encasement products is the effectiveness of the zipper. This is the weak link, and a bed bug’s primary point of entry and exit if not designed properly. Bedbug.com’s scientifically designed and patented zipper technology, known as Zip Tech™, truly separates us from the competition. Our zipper incorporates several features which when combined, are highly effective in containing already infested mattresses, pillows and box springs, or act as a barrier to keep bed bugs out in the first place. First are the micro-teeth, so small that even an infant nymph stage bed bug (almost microscopic) can’t get through. Then, we back it up with an ingenious Velcro security plate behind the zipper head that, once closed, stays closed. Finally, our scientifically engineered triangulation seal above the zipper head keeps it all in place and locked tight, giving you the peace of mind in knowing your encasement product from  Bedbug.com is on the job!