Fast pitch softball shoes may have cleats or spikes. They currently also make shoes, jerseys, shorts, cleats, baselayers, etc. Plastic cleats are similar to rubber spikes. Early rock climbers used heavy-soled mountaineering boots studded with metal cleats and hobnails. The team wore solid blue socks and black cleats. The bicycle requires cleats, which lock onto the pedals. Also cleats, sliding shorts, face masks and knee sliders may be worn for softball. The names refer to cleats or "spikes" baseball players wear and catcher's mitts, respectively. They were Hickory High in helmets, George Mason in cleats. High school athletes are sometimes permitted to wear metal cleats, such as in Ohio. The deck will be reinforced around deck fittings such as the capstan, cleats, or bollards. The campaign allowed players to wear custom cleats supporting their favorite charities. The area hosts a youth soccer tournament called Clash of the Cleats. Some, such as Gary Sheffield, have even developed straps that hook under the cleats. The Falcons also started wearing black cleats with these uniforms.