Searched, didn't find anything definitive - just good reviews for both:
The Dynamo: 12-denier rip-stop Ballistic Airlight nylon (2.6 oz)
The Featherlite: PERTEX microlight - mini-rip-stop (4.3 oz)
1) Which pant material will be louder ?
2) Which pant material is more breathable?
Any input is greatly appreciated! I wouldn't mind the added weight of the featherlite as they have more features, but breathability & noise are biggest issues.