"inside" and "outside" Boots meaning that some styles are meant to be worn over the bottom leg of the leather race suit, and some are designed to be worn inside the leg, these having a thinner top shaft. Touring / street boots Similar to racing boots, touring boots are designed specifically for riding a motorcycle on hard pavement, but with less armored protection than racing boots since they are intended for riders that typically ride on city streets and highways, not race tracks. They are usually between 10 and 14 inches in height and made from a combination of leather, metal, hard rubber, plastic and/or man-made fabrics to create a form-fitting, but comfortable boot. Motocross boots Motocross boots are 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 stiffer 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, metal, plastic and/or man-made composite materials to create a very form-fitting, comfortable and tight boot. To allow a rider to easily get the boot on or off, the shaft of a motocross boot is designed to open lengthwise. Multiple adjustable straps (usually 3 to 4) are deployed along the foot, ankle and shaft of the boot to allow the rider to tighten the boot to his/her preferences and comfort. A curved plastic or composite plate covers the shin of the boot to protect the rider from debris that may be thrown from the front wheel of the motorcycle. Police boots Motorcycle police boots are designed specifically to be worn by motorcycle police officers. Very similar to riding boots, motorcycle police boots are typically knee-high (between 18 and 21 inches in height), the foot and shaft are made from black, smooth-grained, high-gloss leather and the low-heeled sole is made from hard rubber. The boots are typically form-fitting and intended to be worn over breeches or jodhpurs as part of the officer's uniform. The most notable manufacturers for boots to the UK police force are Goldtop (pre 1980s), and Alt-berg (post 1980s). Engineer boots Engineer boots are a long-established style of boots used by people in a number of occupations in addition to motorcyclists. Harness boots Harness boots are very similar