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Fucking about with bivy design. First draft, needs a lot of work but this is it so far.
Black - waterproof 75gsm PU ripstop.
Dark - green goretex from an army bivy unknown gsm, probably about 200 though.
Light green - water resistant ish pertex4 55gsm
Clear - bug mesh 31gsm
Zip to get in and out.
Needs simplifying a bit. Polygons galore because i'm a sketchup amateur. Essentially a bivy bag with a hang-up bug net and pertex where full on waterproofness won't be needed but a little splash protection would be nice.
