Dust boot brush material (plastic sheet)?

[Captain]

I’m seeing a few different options for dust boots now where people are using clear plastic sheet for the brush. Does anyone know what this raw material is? I use a dust boot that I designed, but I’d like to try the clear plastic for a few reasons. I tried a few materials I found at home depot, but the rigidity/flexibility wasn’t right. Everything I’ve tried has been too rigid (where magnetic boot catches and moves) or too flimsy (gets sucked up into vacuum).

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Captain,

I remember Tom used a nylon @TMToronto curtain

[TMToronto]

I used the following…
https://www.amazon.ca/gp/product/B08DQXHQKX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

[Captain]

Oh cool! I can’t wait to try it, thanks @TMToronto and @Aiph5u!