For road: usually very close-fitting (see also compression pants), with a structured pad for those who ride for miles and with braces to improve fit and comfort. For MTB/enduro: decidedly wider, they must allow the rider ample freedom of movement and offer the possibility of wearing knee pads and protective underwear. For gravel/e-bikes: these are soft but usually have a pad, no braces and are designed for cyclists/cyclists who want comfort, protection and quality without striving for performance.