11 Must-See Looks From Fall's Most Stylish Outdoor Party

January embraced her inner equestrian, pairing her polka-dot-printed Zimmermann dress with a tan blazer by Reformation and a Eugenia Kim hat.

Selma played up the preppy, donning a brown-and-white gingham dress complete with pockets.

Camilla looked sporty-chic in a black Andrew Gn halter dress with striped details.

Jaime sported head-to-toe Calvin Klein for the day, opting for a flared top and skirt set from the designer.

Lauren looked lovely in lemon, donning a Grecian-inspired maxi dress in the cheery hue.

Go for bold! Nina's electric-blue Badgley Mischka dress and floral-embellished Stuart Weitzman shoes stood out from the crowd.

This breezy all-white ensemble, plus Ashley's strappy tan sandals, made for a relaxed yet elegant look.

Victoria's two-piece ensemble by designer Kira Plastinina included wide-leg pink pants and a fitted crop top.

The style star bared some leg in a pale pink minidress with floral details by Giamba.

The stylist gave off boho vibes in her long-sleeved white maxi dress.

Caroline skipped a dress for a black-and-white Zimmermann jumpsuit with a lacy floral print.