I noticed this about the $150 eVent jacket.
"When it comes to waterproof and breathable, eVent® fabrics reign supreme. eVent® is made with an ePTFE membrane that does not require a polyurethane coating for protection from oils. With an MVTR of 17,000 g/m2/24hr, our eVent® fabric is exceptionally breathable. And with a waterproof rating of 10,000 mm"
Why are these numbers lower than what I typically see for eVent????