Picked up a 4-pack from Empire Ears for $31 with 2-day shipping. (USPS took their sweet, late time.) XS, SM, Medium, Medium.
Sadly I forgot that my size changes dramatically when I don't wear earbuds after a while. XS and SM fit the best and Medium feels like a large, I'm going to have to give those to a friend.
They've very soft, stretch over earbuds easily, and are comfortable as they seal quickly. They make even my heavy KZ iem bearable.
As for sound, these aren't as good as other eartips. They're comfortable enough that I'll keep them though.