I already have/own 3 pairs of Magnum boots. The last pair purchased was the Interceptor 5.0 Side Zip Waterproof (5890), which I now consider the best pair of Magnums' that I own/wear. The first two pairs of boots are a type/style that have since been discontinued. I was a little disappointed at the time, but I'm over that now. I just ordered a fourth pair, the Interceptor 3.0 (5104), the lower cut version of the Interceptor 5.0. I'm looking forward to the delivery.