Motocross boots are a variety of motorcycle boot designed specifically for off-road, motocross (MX) or all-terrain vehicle riding. To help prevent a rider's feet and legs from being injured, motocross boots are typically much more stiff than regular motorcycle boots or racing boots, but are more flexible than ski boots by comparison.Modern motocross boots are usually nearly knee-high (about 16 inches in height) and made from a combination of leather, ****l, plastic and/or man-made composite materials to create a very form-fitting, comfortable and tight boot. ?The most common colors of motocross boots are black or white, but other colors such as red, blue, yellow and green (possibly combined with black or white) are also available. Trick riders often opt to wear white boots as they are more most readily visible.