Running Sock Pickle

Help request--> Any vegan runners out there have any micro-runner sock recommendations? I am trying to find an animal-free replacement for what I consider to be the Perfect Sock: the SmartWool Micro Crew Runners. I blew through a pair of Balega micros in the race today, which was no loss as they had no cushioning and slid down my heels after the first mile and a half. Thorlos don't fit the shape of my feet.... and I haven't had much luck with anything that has an "ankle", though most things without one tend to work their way off my heels as the Balegas did...! Who knew socks could get so complicated? All I want is an ultra-microthin running sock with a crew ankle that doesn't move, that hugs my foot and has some cushion without adding any bulk or layers, and breathes completely (ie retains no or little moisture) and prevents chafing and blisters -- is that so hard to ask? SmartWool should just start making all their socks out of hemp or bamboo or flax or soy or all of the above and leave the sheep of the world alone (which, hey, would really BE "Smart"!), and then I wouldn't have to stop buying the Perfect Sock...! Alternative suggestions, anyone?