>>2787249Silpoly is the best balance of performance and not poisoning the earth or yourself. Silpoly does not breathe but it will never wet out and you can simply design the jacket to have mechanical venting.
Timmermade Megazip Silpoly is the best rain jacket on the market by a long shot. And its not hard to DIY one and copy the design you could do it around 100 bucks if he's not currently selling them.
Columbia Outdry Extreme is the 2nd best PFAS free rain shell system. Its like shakedry but less breathable and tougher.
Bonded Polypropylene (Frog Toggs) is the 3rd best PFAS free rain shell. Its great other than the durability.
anyways here's a up to date copy pasta from reddit on the state of post-PFAS membrane jackets:
>Arc'teryx and Goretex are moving into their EPE line. Outdoor Research has dropped Goretex entirely in favor of their proprietary Ascentshell (Foray 3) or Ventia (Stratoburst). Loads of companies are switching to Pertex or Cordura or their own formulations. All of these materials are PFAS free.>As far as other gear goes, Nemo is doing some really great stuff with their Osmo and Endless Promise lines- the former is a neat blend fabric that is PFAS and fire retardant free, the latter are all of that as well as being recyclable. Many other fabrics for tents and bags- silnylon, X-Pac and it's successors, and dyneema- don't rely on PFAS for waterproofing AFAIK.>The new generation of membranes are typically more sensitive to getting soiled and subsequently losing performance than the old Goretex was. They like to be washed, and treated with something like Nikwax or whatnot to maintain their dwr over time. Failure to do so means they won't breathe or bead and shed water as well. But other than that, their performance is okay compared to old Goretex and they're much more sustainable.>[adding to this redditor's post] Columbia Outdry Extreme deserves mention as well. I already thought silpoly was superior to gore tex before the post-PFAS nerfs.