Bass Pro, Cabelas, Academy...most of your sporting goods stores should have one. Make sure to get the suction cup ones. That's what I have and they work great. The can hold up to 100 pounds. I use to have one that cinches up into the window seal, but those would fall over on me when I would turn a corner. I have noticed that in extremely cold weather, my suction cup rack would be laying in my seat in the morning when I would get out to my truck. I don't know if it's because I have had my rack now for about 5 years and it's time to get a new one or what. However, when I put the rack back on the window, it sticks and holds just fine.