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A flowy midi dress, soft fabrics like chiffon or cotton, and block heels or sandals keep things polished yet relaxed

Fiber/Care: unmarked, silk, dry-clean only

Sweater dress: ASOS c/o, $58 Cardigan: Amour Boutique c/o (similar, similar) Leggings: Lauren Conrad, $8 Boots: Michael Kors/Macy's, $225 Purse: Karen Millen, gift (similar, similar, similar) Necklaces: My Stella & Dot 1, 2 Approx

Most recently, last Tuesday, Sweeney made an appearance on The Tonight Show Starring Jimmy Fallon in a cherry-red minidress embellished with a large rosette

A voluminous tulle skirt adds a floaty, cloud-like effect that moves beautifully with every step

Add a denim jacket and white sneakers for sporty-chic street style