Hello! I keep my quilt in a trash compactor bag along with my sleep clothes and (in the past) my puffy. Trash bag packs first and comes out last.
I used to carry around a Cap Thermal that I would keep in the front pocket of my backpack or at the very top of the backpack if raining. I would whip this out and wear it on breaks during the day when it was cold. Because it was synthetic, I wasn’t worried about it getting a little damp or getting snagged on something.
This year, I’m leaving the thermal at home, so I need to use my puffy not only in camp but also on cold days when I stop to take breaks. Hence my existing storage solution of inside-my-quilt-inside-the-trash-compactor-bag-at-the-bottom-of-my-pack is no longer viable. I’m also reluctant to just stick it naked in the top of my pack or in the front pocket not only because of dampness but also because it is expensive and fragile and I’d like to protect it with a dry sack from snags and dirt.
All of this is a long lead up to the question: can you recommend a quality dry bag for just my puffy? I bought a “slim” ZPacks rolltop bag (4L volume), and while I think this is the perfect volume (not too much compression, but I can if I want), the shape is annoying to pack — the top opening is too small/narrow (8.25 inches flat; 5″ diameter open) and the bag is too long. I’d like something of a similar volume but less narrow-rectangle and more squarish to make stuffing faster.
I looked at the Granite Gear dry bags (both event and regular) but the smallest size is 7L — too large for just my puffy. I don’t have and don’t want to stick anything else in the bag with my puffy. Plus they’re heavy.
I’ve considered just using a cut down nylofume bag, but a rolltop is appealing to me given how often I’ll be accessing and abusing it and the value of its contents (both monetarily and in terms of its importance to my survival). The obvious solution would be to make a rolltop bag myself, but I’m currently staying at a friends’ house and anyway now’s not the time to learn to use a sewing machine.
So to recap: looking for a lightweight dry bag, about 4L in volume, and with an opening larger than 8.25″ flat/5″ open. Shorter than 18″ tall flat/12″ tall open.
Thanks for your recommendations!

