Another fabric y’all might find interesting is Cuben Fiber. This stuff is insane. It’s gossamer-light, but so tough it’s used in racing sails. It’s made by sandwiching any of several extremely tough filaments (such as Dyneema) that are as little as a thousandth of an inch thick in various arrangements between thin outer layers of polyester film. The “sandwich” is then melded together. I’ve seen one video of it being lased and there are a couple of hyperlight backpacking gear companies that advertise laser-cut Cuben patches, so I’m guessing it’s OK to laser cut.
In backpacking use, it means we now have really tough tents that weigh less than 2 lbs.
Here is a description of the version made from Dyneema by a company that uses it for outdoor gear:
Dyneema® (non-woven) Cuben Fiber: This high-performance, non-woven, rip-stop, composite laminate was developed in the 1990s by a nuclear weapons physicist and an aerospace composite engineer. Originally designed for use in world-class sailing, it’s ideal for lightweight and ultralight outdoor gear due to its unmatched strength-to-weight ratio. Technically speaking, Cuben Fiber is a laminated fabric made using patented technologies with unidirectional prepregnated tapes of in-line plasma treated fibers that are spread into mono-filament level films. In more simple terms, Cuben Fiber is made by sandwiching Dyneema® polyethylene fiber filaments a thousandth of an inch thick, in various arrangements between thin outer layers of polyester film. The “sandwich” is then melded together in a high-pressure autoclave.
Cuben Fiber is lightweight, highly durable, and is 50-70% lighter than Kevlar, four times stronger than Kevlar, and allows flex without losing strength. It also weighs less than silnylon, it floats on water, is 100% waterproof and has high chemical and UV resistance.