Spikes are usually preferred on a grass or field turf surface, allowing a player to dig into the surface and resist forces that may stop forward movement. Removable cleats are advantageous because they can be switched out for different surfaces. They come in 1/2, 5/8, 3/4, and 1 inch sizes. Molded cleats are preferred on turf surfaces to provide more traction. A lineman may benefit from a high top cleat above his ankle, which provides more stability during lateral movements. A running back or wide receiver may prefer a low cut cleat providing greater agility on the field while performing cutting maneuvers.