Netting pack

I've seen mesh packs, but not this loose netting.

I considered using mesh. I've seen mesh knapsacks (like the photo below) and backpacks for scuba gear. Because the openings in leno mesh and similar materials are much smaller than the netting, they would protect underlying things from abrasion (which the netting doesn't do). But mesh strong enough to withstand having cordage laced through it for compression or attachment of pockets would be very heavy, and things couldn't be attached with clips or stuffed through the openings.

Colin,

You said "I'd rather have a very breathable pack fabric that I can line with a pack liner or lightweight dry bag"

I agree with this and have been using uncoated fabric for this reason for about 10 years now. Another great advantage of breathable material is that I can throw my pack into the washer after each trip. Kelty used to make their some of their frame pack sacks out of uncoated nylon in the 70s.

I've toyed with the mesh or netting idea but backed off for a couple of reasons:

(1) I'm currently down to 1.1 ounce ripstop nylon for my pack bags. Can't save much weight by going to netting.

(2) Netting is much more prone to snagging on things than a finely woven ripstop nylon.

Haven't given up on the idea yet and your experience may sway me. Please keep us posted.

Daryl

Daryl, I agree about the weight and the snagging. The snagging should be a little less irritating with the netting than it would be with mesh, because the netting won't tear, but it still might be an annoyance.

I initially felt conflicted about the cost in weight, but I have decided that I'm willing to accept it. The netting itself is basically 200 lb test dyneema fishing line in a grid of 1" squares (it is actually marketed as fishing net), and it weighs about 1.3 oz/yard. I'm considering using a 1.6 oz/yard dacron pack bag underneath, and a thin liner inside that. This brings the total material weight up to just over 3 oz/yard. This is still lighter than Dyneema Gridstop and some of the Dimension Polyant pack fabrics, and the pack should require less than two square yards of each material, so the absolute cost in weight of the netting design over 1.1 oz nylon is probably less than three ounces.

I plan to use a mesh-like high-tenacity nylon from a fencing jacket for the bottom, 1/2" thick 3D spacer mesh for the back, and pocketed straps that will hold 2L of water, so it will definitely end up much heavier than your packs in the end. I hope to keep it under 16 oz.

Snags have almost taken me off my feet, and at 220 lbs, that says a lot about snags. If you do this, I hope it works out for you.