These made in the USA jeans from 7 For All Mankind and Current Elliot are all majorly discounted (as in $89 down from $199) and work for fall through spring, so they're all safe as wardrobe staples, in my humble opinion. I especially like the pebbled "leather" texture on the tan skinnies, but I could see myself living in the textured black jeans by Cuurent Elliot and my moto boots.
And for some "stretch" items, I had to include this handmade sweater by Rodarte ($669 from $2990) and the silk jumpsuit (now $319 from $1,650) by Holmes and Yang, which are both majority US-made lines. Holmes and Yang is no longer in bidess, so it's your last chance to grab a piece by Katie Holmes and her stylist, if you're into that.