The Etowah Outfitters Pack Cover are ultralight pack covers made in the deep south.
I picked up the size small which fits over both of the 30+ Liter bags I tried out. And you’ll have no reason not to take it with you considering how small it packs down.
I have used it for hours in wet snow without my pack getting wet. There is a clip on the pack cover so you can clip it to your bag or hang it up to dry.
And one more shot from the side to show how much of the pack it covers.
I picked mine up at Halfmoon Outfitter in Charleston SC.
Check them out at Etowah Outfitters. Etowah says:
Made with 1.1oz silicone impregnated ripstop nylon, fits 1800- 6000 packs with no seams through out the body. Drawstring closure with attached stuff bag for easy storage. 3 sizes available. Colors: Assorted
Large (3500ci-6000ci) 3.8oz. msrp $29.00ea
Small (2400ci-3500ci) 2.4oz. msrp $24.00ea
Ex small (1800ci-2400ci) 2.0oz msrp $20.00ea