I LOVE THIS PRODUCT. There is NO other like it. I've used the tourna grip traditional blue for many years and thankfully the product hasn't changed. Great quality and your grip never slips however, still gives a good 'feel' while playing. I highly recommend this grip over any other.
After doing a little research since there are so many different overgrips out there, I finally settled on Tourna grip. I absolutely love this grip! If you have dry hands while playing this is NOT the grip for you. However, if your hands sweat while playing like mine do this grip is perfect! Very, very absorbent. One thing to add: If you have a larger size grip you may want to go up to the XL version. It's wider and allows you to get further up the grip. Mine came up a little short and I will get the XL version next time.