This is the HighPower shooting cap designed by HighPower shooters in the US. This is for shooters who are looking for a more flexible brim than that of the traditional side blinder caps.. The sides flip up or down depending on your preference and the lighting conditions. When the sides are flipped down, there is coverage for the whole side, and no velcro to adjust. No light can sneak in from the back. Once you get past the duck face, this is a pretty sweet Cap.