ASOS has been a long-time favorite retailer of mine. They offer lots of trendy styles in big and tall sizes (up to 4XL in and 3XL Long for tall), whereas most brands only offer extended sizes in basics.
Not only do they offer their own private label designs but they have items from French Connection, River Island and ellesse, among others. Fashion forward fabrics, bold prints, tie dyes and sequin tops abound at ASOS which is fantastic for the more flashy among us. They also have you covered for basics so no worries there, but I cannot tell you how awesome it is to have the option to buy pieces that are in style NOW.
According to their site, they have done some adjustments on their extended sizing so that the fit is more in line with what you’d expect here in the USA. Previously their sizes ran a bit small to what was expected which is why I encourage you to use their custom “Fit Assistant” to determine the correct alpha-size you should order, even with their recent adjustments. Its always better to be safe than sorry!
My favorite pieces from them have always been in their sweater department. I can vouch for the quality firsthand, and the prices cannot be beat!
They offer free worldwide shipping and often have amazing sales going on. However, I recommend acting quickly if you see something you like as styles are apt to sell out fast!