Nicky Hilton wears New York T-shirt with lacy slip skirt and $100 Adidas sneakers for NYC stroll

Hotel heiress-turned-designer Nicky Hilton Rothschild showed off her flair for mixing high and low fashion while strutting her stuff on the Manhattan streets Tuesday.

The 39-year-old native New Yorker wore a black T-shirt made from two different New York tourist tops, a matching lacy slip skirt, and $100 Adidas ‘Gazelle Shoes.’

Nicky (born Nicholai) wore her platinum blonde locks in an updo and she accessorized her daytime attire with a silver chain necklace and a black studded hobo bag.

Rothschild – who attended the Marc Jacobs FW/23 presentation on Monday – recently revealed in Us Weekly‘s 25 Things You Didn’t Know About Me interview: ‘My alternate profession would be a stylist. I love dressing up.’

The French Sole collaborator told the mag she loves unwind by eating macaroni and cheese while watching Bravo reality show The Real Housewives of Miami, or take a ‘hot bath’ and ‘aimlessly scrolling the Internet.’

‘My favorite room is my bathroom. I have a chair I lounge in,’ Nicky confessed.

‘I lock the door and do all my emails. It’s my quiet place.’

Rothschild and her second husband James Rothschild – who began dating in 2011 – will impressively celebrate their eighth wedding anniversary on July 10.

But first, the married couple will ring in their son’s first birthday sometime around July 5 immediately followed by their daughter Lily-Grace Victoria’s seventh birthday on July 8.

Nicky and the 37-year-old financier are also proud parents of five-year-old daughter Theodora ‘Teddy’ Marilyn.

‘On Saturday nights, I’ll be at my country house in a cozy robe by the fire with my family,’ Rothschild gushed.

‘On Sunday afternoons, you’ll find me baking cupcakes with my daughters and playing Scrabble.’

The younger sister of Paris Hilton is a board member of meals on wheels non-profit organization God’s Love We Deliver, which throws their Midsummer Night Drinks benefit on July 29 at Neil Patrick Harris and David Burtka’s East Hampton home.

Big Apple babe: The 39-year-old native New Yorker wore a black T-shirt made from two different New York tourist tops, a matching lacy slip skirt, and $100 Adidas ‘Gazelle Shoes’

Boudoir inspired: Nicky (born Nicholai) wore her platinum blonde locks in an updo and she accessorized her daytime attire with a silver chain necklace and a black studded hobo bag

Rothschild – who attended the Marc Jacobs FW/23 presentation on Monday – recently revealed in Us Weekly’s 25 Things You Didn’t Know About Me interview: ‘My alternate profession would be a stylist. I love dressing up’

‘My favorite room is my bathroom’: The French Sole collaborator told the mag she loves unwind by eating macaroni and cheese while watching Bravo reality show The Real Housewives of Miami, or take a ‘hot bath’ and ‘aimlessly scrolling the Internet’

Began dating in 2011: Nicky and her second husband James Rothschild (R, pictured last Saturday) will impressively celebrate their eighth wedding anniversary on July 10

Parents-of-three: But first, the married couple will ring in their son’s (L, pictured June 18) first birthday sometime around July 5 immediately followed by their daughter Lily-Grace Victoria’s  (M) seventh birthday on July 8

Tickets/tables range between $500 and $15K: Rothschild is a board member of meals on wheels non-profit organization God’s Love We Deliver, which throws their Midsummer Night Drinks benefit on July 29 at Neil Patrick Harris and David Burtka’s East Hampton home

Tickets/tables range between $500 and $15K for the carnival-themed charity event featuring ‘hors d’oeuvres, cocktails, music, entertainment, and a few surprises.’

‘Philanthropy is important to me,’ Nicky – whose first car was a Mercedes – explained.

‘I work closely with the Hilton Foundation, and I also sit on the board of Animal Haven.’