The size I bought is the Extended. I wanted to get a new mousepad to replace my Steelseries QcK that I had been using for the past 4 years. My initial thoughts were to get another QcK, but then I came across this one which was cheaper. Size: This mousepad is very big. It covers the entire length of my desk and is also quite wide(twice the breadth of my old QcK), so you have a lot of room to aim both horizontally and vertically. This will enable me to try a lower sensitivity since there's no way I'll slip off the pad when turning wide. You basically will never need to lift the mouse off the pad to reposition. Material: The material feels exactly the same as the QcK I have, which is excellent. This came as a surprise to me as I thought it might be a lower quality material since it was so cheap. It's a flexible cloth mousepad which is a little thicker than the QcK. The bottom is rubberized so it will not slip. I have not needed to clean it yet, so I can't comment on the machine-washable part. The only thing I'm wary of is that the edges of the cloth and the rubber are not stitched together, but glued. This can cause the 2 layers to separate after a while. This was one of the main reasons I wanted to replace my old QcK after years of use. However, considering the size of this pad, it wouldn't be a big deal even if the sides peeled off a little as there would still be plenty of usable space. Overall excellent mousepad for the price.