Here's a couple of options, I use a Nuuk bag from water shed, 200ft depth rating and I can put fire starting equipment, ACR PLB, GPS,radio,compass and odds and ends. It's relativity small, durable, and you can release the pressure like a zip lock bag when sealing and has a lifetime warranty. Money well spent. As for fire equipment I use a light my fire army ferirod,Magnesium block, 2 country comm SS peanut lighters with fov with lighter fluid, and a mini zippo. Life boat matches is good to have as well (I need to add those to my kit as well and is a good suggestion from Chris). Also have cotton balls with petroleum jelly. The kit goes in my BOB kit when not diving and transfers to the belt when diving. I haven't had any luck with vacuum sealing bags or zip lock bags at depth.

1.OMS CANISTER 660FT DEPTH

OMS Canister link



2. What I use and prefer-- Nuuk bag from water shed 200ft depth rating.

ZipDry® Deck Bags
Watershed Link