All adidas boots are available in both cleated and non-cleated variants. Choose cleated surfaces for play on soft ground, firm ground, or artificial grass, and non-cleated surfaces for play on tougher, flatter surfaces such as indoor courts, artificial grass, or street games. Non-cleated boots include tiny rubber studs or a flat rubber sole for enhanced grip. Cleated boots have large, plastic or metal spikes that dig into the turf to provide stability and control. The type of foot you have determines which Adidas boot is right for you. Your size may be listed as a length or width. For example, an 8E length shoe has an average length of 8 inches but with a very wide toe box (8 inches across) that can accommodate larger feet. Width refers to the distance from the middle of one shoe to the middle of the other; generally, men's shoes are narrower than women's shoes. If your feet are slightly wider than your AdiDirect size, look for a pair of AdiDirect XL shoes in a similar style to add extra room in the toe box.