Revolve Clothing located in the US is a great place to shop. They carry higher end casual clothing, like 75.00 USD T-shirts. But if you are someone that can afford a $75.00 t-shirt, this is a place to visit.
What I love about them is great customer service, and trendy but basic, casual and (my favorite) wearable clothing. You can always count on them for a quality pair of black leggings, jeans, khaki shorts or a smart T-shirt dress.
One of my favorite brands they carry is Velvet by Graham and Spencer. The quality jersey material is so worth the extra price (only if you can afford it) and the pieces are so basic you will reach for them again and again. Other brands include Juicy Couture, 7 For All Mankind, and House of Harlowe among many, many others. .
Now the best part of all: Revolve offers Worldwide Shipping and orders over 100 USD ship for free. That's hard to beat. Shipping info is here. I love these guys.