Originally Posted by
oldpenny16
Makes me wonder if Tyvek is our future.
Patagonia brand has a super light weight carry on bag in what may be Tyvek.
More information would be nice to have.
Patagonia's lightweight travel series is nylon with a polyurethane/silicone coating.
Those Tyvek bags look cool.
I use a tyvek carry bag all the time, otherwise known as a USPS Priority Mail envelope. Its the lightest "brief" I have.