No idea if any one will be interested in playing along but... Thought it might be interesting to design a UL pack between us all and assuming we have a clue what we're talking about, and we can (pretty much) agree on a design, I'll have a go at building one. As a bit of a primer the type of pack I have in mind is a frameless UL pack that's circa 400g tops, usual set up of two shoulder straps, simple hip belt (if any), but beyond that it's pretty much up to us all to decide on something. Fabric wise I'd rather order from europe where possible using something along the lines of dyneema x or x-pac, or I guess maybe cuben from z-packs. Assuming it works out ok I'll stick in on eBay with no reserve, give half the sale value to charity and keep the other half towards my costs. I've got a couple more to build before I'd be able to get started on the actual build but no doubt it'll take us a while to discuss the design.