Some blinds have windows - limiting your range of swing. Some blinds have transluscent roofs - aiding your vision. Some blinds have flip open roofs - giving maximum shooting room. Some blinds are spring-steel hoops that sort-of "pop" open when you toss them on the ground. And some blinds are steel-framed and not something you'd want to carry on your back any distance. And that is just the sit-in-a-chair type blinds. The layout blinds are a whole nuther category.
