Someone here said that using gauntlets makes your roll deflect against bigger enemies. It's only partially true, as the case is a lot different, so I'll explain how it works. Wearing ANY part of the set when trying to roll into larger enemies will cause it to be deflected/bounced ( you can wear even leggings or helmet and it will happen ) but ONLY if you do not meet at least one single requirement on your weapon, including strength to one-hand, even if you can two-hand, or not enough faith/int/dex. Also the case seems to happen whether you wield them in right or left hand, except for bows and crossbows, when used on the latter. The effect itself happens when rolling next to most bigger enemies, including Millwood Knights, Giant Slaves, Gargoyles, Giant Crabs, Pontiff Beasts and some other. It also happens in case many bosses that are at least a few times bigger than character, starting from Pontiff.