The "bag-type" fletch cover is problematic and a pain in the butt. They snag when moving through the brush, they collect debris, moisture slides down the shafts and wets collects in the bag if the bag material is waterproof or soaks the bag if the material is not waterproof, does not prevent moisture from wetting the fletch/vane, and you will play hell trying to sneak out an arrow for a second shot.

I use a "homemade" lightweight curtain made of waterproof material. "Rip-stop" nylon works fine. Lightweight "Gortex" is better.

-The curtain is approx. 2 inches longer than my shafts.
-The width is sized so that there is a 1" overlap. The "overlap" is positioned to the front (side that most shafts are first pulled from).
The curtain is wrapped around the top of the quiver and held by a ½" stretch-band sewed under a hem (like on sweatpants)
-There are 2 small snaps on the overlap; one in the middle, one near the (fletch) end.

When moving through the brush the snaps are shut. When in my stand I take the quiver off my bow and mount it on a quiver bracket that is screwed into the tree. I then unsnap the snaps. This allows me to spread the curtain and draw another shaft if needed. If the rain or snow stops, I roll the curtain up and tuck it under the stretch-band.