I have used Austrian Loden since i was 15, worn out a few pairs too over the 35+ years

trousers :
http://jagdhund.com/herren/hosen/lodenhosen/steinbach-dunkelgruen/
Jacket:
http://jagdhund.com/herren/jacken/abersee-dunkelgruen/

Loden i silent, doesn't really get wet from rain, if the trousers get soaked in blood just hunt for a day or two and it will fall of. Never wash with soap, just dry hanging when wet.

When not hunting, store with moth balls or other similar agent.

wear a pair of dark gloves so that hand movement is not easily seen when spotting.