I just stumbled upon the Watch Steward straps on IG https://www.instagram.com/thewatchsteward/
They look similar to Erikas MN strap material (elastic nylon) and they are $25 each!!!
I have 3 of Erika's straps and they are amazing but expensive.
About time that she is getting some competition, hopefully it forces her to drop the price down some.
The straps are available in 22mm only (for now hopefully).
All my watches are 20mm so I will be following the brand and hopefully they get 20mm soon.
Here is the site The Watch Steward - Home
I am in no way associated with the site or seller.
Some pics from their site: