Advice wanted – material for solid inner tent

I reached out to Kyle at RSBTR for this very question and he said this is his most breathable fabric and is what he sells to a lot of cottage vendors for walled-inners.

or, there’s a lighter fabric at RSBTR,

Yea, the 1.0oz Hyperd is an option in Uncalendered but Kyle said it’s not as breathable as the 1.1 so choose your battle, tiny weight penalty or breathability.

I made a solid inner for my MYOG dome tent from the 0.66oz Membrane 10 taffeta nylon fabric from Ripstop by the Roll. It’s worked out great – held up for over 18 months with no tears, maybe 30-40 nights of use with my dog. Even when the inside of the outer fly is covered in condensation, I stay quite dry inside. I have not seen condensation form on the inner fabric yet

I’ve also used the lightweight Argon fabric that Dutchware used to sell at 0.67oz/sq-yd for a partial-solid inner on a pyramid tent. I think the Argon fabric is more breathable, but I went with the RBTR fabric for my dome tent because I wanted a bright and cheery interior. The Olive Yellow was perfect for that.

I think as long as you have some mesh along a vertical wall, the RBTR Membrane 10 fabric works great. It would be hard for me to recommend using any heavier fabric.

Here’s a couple pictures of my dome tent. The bright yellow fabric is the RBTR Membrane 10. I used Tulle for the mesh, which snagged a bunch when I tried using velcro inside (thus the patches). I can cover the mesh window with solid fabric based on ventilation needs or how cold/warm the night is.

Thanks everybody.  I think I will try the Membrane 10 and see how it goes.