On Thursday evening, Net-a-porter and Mr Porter drew a crowd out to Sagaponack, N.Y., for their annual “summer in the Hamptons” cocktail party. Hosted by Net-a-porter’s new chief executive officer Heather Kaminetsky, the party drew Julianne Moore, Morgan Spector and Rebecca Hall, Carolyn Murphy, Jack Innanen, Tamron Hall, Nicky Hilton Rothschild, Tyrod Taylor, Isan Elba and more.

Home store Wyeth was redone as a pop-up boutique — smartly, it was the one place to find air conditioning. Plenty of guests opted for cream and white ensembles, accessorized with humidity-fluffed hair on women and a trucker hat on men. Moore bravely wore a long black leather dress by Khaite, looking ever the perfect temperature. Spector, dressed in Loewe, posed for photos with Evan Ross Katz, as he and Hall tried to make sense of the print on Katz’s shirt. Thanks to his hit show “Adults,” Innanen is a newly minted fashion “It” boy, having attended the Thom Browne party the night before. 

“I literally just landed four hours ago now from London,” Kaminetsky said. Having recently relocated to London for the new position, Kaminetsky said her summer thus far has been primarily focused on work.  

“I am excited about what we’re going to do and how we’re going to grow the business, and it’s going to have that vibe that — I call it reigniting the magic,” she said.

So far she is loving the transition to London, though it hasn’t been without its occasional culture clashes. 

“There’s no air conditioning. I did not understand this,” she said. “I was in my apartment one day, I was looking [around] and I’m like, ‘where’s the AC?’ So I call the front desk and they’re like, ‘no, there’s no air conditioning in this apartment.’”

On the plus side? “I went for a facial two weeks ago and my facialist told me my skin has never been as hydrated,” Kaminetsky said. “That is my perk of the no air conditioner.”

Glasses of Whispering Angel and palomas were knocked back — near the end of the party, the rosé had run dry — and mini lobster rolls and chilled shrimp, courtesy of Clam Bar Catering, were sampled. Net-a-porter shopping bags dotted the tables, Elba took a break from the DJ booth to dance and despite the golden hour photo-op light’s disappearance, the party kicked on in full force.