>>1617634Eh. Unless you're including cost I'd disagree.
What are the metrics waterproof+breathable are judged by?
>breathability in CFM of airflow>hydrostatic head before leakage>durabilityGoretex Pro has significantly higher hydrostatic head (28,000mm) than any other W+B fabric. It's submersible-levels of waterproof. Things like EVent at around 10,000mm will seep under heavy rain or forced contact and aren't "truly" waterproof (heavy rain can exert up to about 16,000mm pressure head), and the next-best like H2NO/Pertex Shield+ are only 20,000 so rainproof but not submersible and may seep under contact pressure like wet shoulder straps on a backpack.
Goretex Pro also has an extremely high breathability, an MVTR of 25,000g/m^2/24h. Only two others beat it, EVent and Neoshell, both of which aren't truly waterproof (10,000mm hydrostatic head), and they don't beat it by much (30k vs 25k, most others are in the 18k range). To add to this, it's mechanically wicking so you will still get some benefit from it even if you wet out the shell (the only other one to offer this is Pertex Shield+).
Goretex Pro is also one of the most durable W+B fabrics. It's a bonded triple layer nonwoven fabric with extremely high abrasion resistance. By itself the W+B fabric is one of the most durable, although this hasn't been tested as empirically or as thoroughly as breathability or waterproofness since it's largely dependent on what the shell fabric is. Suffice to say it's not delicate like EVent, and carries a lifetime waterproofness guarantee from Gore Tex.
So it's the most waterproof, most durable (this is slightly subjective), and breathable enough that the only way to differentiate it from the slightly more breathable ones requires high intensity cardio in warm environments where you'll be drenched in sweat either way. The only way to get better breathability is to go with a "drizzle proof" instead of "waterproof" membrane.
