SOS Quick Shelter.
I used 70D nylon instead of 30 or 40, because it’s readily available and cheaper than the Cordura type. Backed it with TPU, which is safer than PVC and waterproof. Material is a translucent ripstop so you can see if people are moving inside and at night the light inside will show through. Size would be close to a mid to large mountaineering pack. Crank light on inside for obvious reasons. Bottom would be a thin tarpalin type material. I guess pack would wieght in under 10lbs, with a landed cost of around $20/$30 each pack.
