I have an Outdoors Expedition float tube for sale. It looks a lot like the Trout Unlimited Gunnison and is olive in color. The F-tube is U-boat style and has a Boston Valve for easy inflation and deflation. I bought it from Gart Sports about 4 or 5 years old. It has been gathering dust since I bought my TU Togiak. There was a seam that started to go a year before I got the Togiak, but I repaired it and didn't have any problems. This style of tube is great for packing or biking to hard-to-get-to lakes. I used it once to fish Fontal Lake. I'm offering the float tube for only $25 because of the repair.