Ive bought a lot of stuff from Swrve.
http://www.swrve.us/. Super nice people. Owner personally delivered pair of pants to my house after they were hemmed. Also had zero issues replacing a pair of jeans that had minor defect and let me keep the defect ones too. Lot of the stuff is made in US here in Los Angeles. Of course not cheap, but happy with what I have. The knickers would be a good choice for you probably.