Meghan Markle's J.Crew sweater should be rotation all season long

The days of denim cut-offs and tank dresses are behind us.

September has arrived and Meghan Markle is showing us just how sweater weather is done. The Duchess of Sussex landed overseas to watch her good friend Serena compete in the U.S. Open. For the ocassion, Meghan paired her J.Crew denim dress under a J.Crew collarless sweater-blazer.

The relaxed sweater is our new favorite layering piece for the season. With lapels that emulate a blazer made from a cozy knit fabric, you won't want to take this one off.

And you're not just limited to grey. From a pale pink to red, cream and green, black, we suggest grabbing this wardrobe staple in every color. You really can't go wrong.

J. Crew Juliette Collarless Sweater, $148

Customers from the brand also have nothing but good things to say about this cardigan:

"Pictures don't do justice of this rare gem! I loved this cardigan the moment I tried it on. It is simply perfect, the style, the fabric, the cut, the length. Simple, but not plain, classic and elegant, but not matronly, just right," one person wrote.

"I LOVE this sweater! The quality is lovely; it hangs beautifully and wears well throughout the day. I saw this online and went right past it; however, while I was in the store one day, I stopped and tried it on. It looked so much better on in person!" another explained.

See Meghan wearing it in the gallery below!