Tried to post a link, but couldn't. A good auction number is 

160556860554

They look good in pics, not sure about quality.

Perhaps not that exact one, but the cheapest one I could find on ebay has been on my CT2 for 2,000 miles now and is holding up fine. The bike is stored indoors. I did splurge for new foam which is totally worth the money in my opinion.

Injuntom from the MB Community.

Use KDI REPRODUCTIONS ….

Checkout their website…

 

Not sure KDI has complete seat for the model being asked about...  not even sure what bike we're talking about but ebay auction is for DT100/DT125 seat.  Not sure which US model year DT100/DT125 that seat would fit and suspect it might be closer to a US DT100/DT175 seat and might not fit a US DT125?  More questions than answers.  So many model variations around the world. 

Here's the seat link:  ebay seat link

I clicked on the Link after I recognized the new members name. I agree MarkT. I don’t think KDI would carry that seat cover. It probably would be fine if the foam and the seat pan was solid. As far as sellers from Thailand I had not had great customer service or quality merchandise.
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That's why I said it's not even clear what's "really" needed or what year/model.  Could be someone with a repairable seat looking for an easy replacement?  Or someone that has a bike with no remnants of a seat at all?  Or something in between.

Question was about if complete replacements were any good...  I never bought one but have seen posts here from people that had no other options and thought they were okay...  including a couple that replaced the foam as they found the replacement seat too hard...  one said if you just ride it the foam softens.  That's all I know except you need to be especially careful on the smaller bikes because other parts of the world had different variations from the US.