It is .060 thick to give rigidity but not too much weight.

Works like a charm.

Makes sure your pack doesnt sag or bunch.

I made one for myself and after popular demand, I handcut them for sale.

My pack is not included but some people asked me about my mods so here they are:

Maxpedition shoulder pads.

Velcro addition to hydration pouch.

Shock cord.

Carabiner.

Clip on light.

Austrialpin buckles.