I bought a sitech flex replaceable wrist and neck kit with DRIS. The first awkward thing was that the tool to place the neck seal in the neck ring was not included. In addition, seems like the material used in the ring set - especially the slaggo flex ring set - is of poor quality as it broke after changing the seal once! Loking at the Sitech website I found they do have quality standards. I asked DRIS about replacement and they told me there's no warranty on "just a piece of plastic". Disturbed to think that not only the price for the plastic but also one of the pieces of plastic that keeps me from freezing, I started looking into more details. After further investigation, I found DRIS are not sitech approved vendors! I asked them about it, but haven't heard back since. They do have great prices, but you might be getting shitty products. So be aware!
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