Buy chain mail gauntlets, good welded rings, on your defensive hand. Not aluminum.
I guess we know what wearing a leather strap around the neck is for. What's ironic is that they are engaging in these thuggish tactics then calling themselves anti-fascist.
OTOH, putting this information out on the internet may be an attempt to deliberately escalate more violence at these events. We hear they're bringing knives, so we bring guns...we bring guns, so they bring bombs....and on