I got a Jumbo Tail Guard for my SUP last week and it protects the tail of my board really good. It is made by Surfco and the fit is awesome. I had the smaller tail guard that is made for longboards, but it just didn't have enough protection to me.  With the new Jumbo size, it is made to fit big longboards and SUP's. There is also a Jumbo Nose Guard that I didn't get for the nose of my board. If you want both the nose and tail guard, there is a combo package with both inside but I don't know how much you actually save. I bought two tail guards, one for my board and one for the wife's board. I got one of the tail guards from Wet Feet and the other one from Tropical Blends. Check them out. Aloha.