They should have ample room to move your toes although cradling and supporting your feet. Moisture should not be let in and any moisture inside should be wicked away to prevent chafing and blisters. Many work boots are fitted with a puncture-resistant plate from the sole to protect against anything https://bbs.pku.edu.cn/v2/jump-to.php?url=https://en.wikipedia.org/wiki/Comfort