From the designer, Tyler Boroff:

Fishing high water on the South Platte, I wanted to create a leech that stood out a bit amongst the rest. After messing around with a few patterns, I stumbled upon this veil egg yarn. Adding the veil yarn on top of a possum strip gave the fly a slime-like coat. With a hot spot on the head and a teardrop bead, it evolved into the MVL (Mini Veil Leech). While the bead less version is deadly under an indicator. I find that the beaded version is perfect for a euro anchor or to simply fish as a micro streamer.