REBECCA TAYLOR MERINO WOOL TURTLENECK PULLOVER, Rebecca Taylor, $275, COS WOOL STRAIGHT-LEG TROUSERS, COS, $135, TORY SPORT COLOR-BLOCK VELCRO SNEAKER, goop, $198, SPINELLI KILCOLLIN MERCURY RING, goop, $900.

Fashion Uniform:
Turtleneck + Wide-Leg Pants + Sneakers

There’s something totally utilitarian—and chic—about adopting a seasonal uniform. For starters, it alleviates the whole I-have-nothing-to-wear doldrums, plus it’s reliable and works it in a variety of situations. An added bonus: Early fall days mean you can get away with wearing a chunky sweater in place of a coat. Here, three slight variations on one of our fail-proof outfit ideas.

• great lengths

  Now is the time to let loose. There’s something so achingly chic about a slouchy, wide-leg trouser: it feels polished but also at ease. The pairing of a throwback-y pair of Adidas Gazelles with a mini shoulder bag is spot-on, too.

• CO
  Rib Detail Cashmere
  Turtleneck goop, $850
• ADIDAS
  Gazelle Suede Low-Top Sneakers Barneys New York, $90
• ADAM LIPPES
  Wide Leg Pant The Webster, $950
• KIM DUNHAM
  Arrow Ring goop, $3,200
• CHLOÉ
  Marcie Mini Suede and
  Leather Shoulder Bag NET-A-PORTER, $990
• RMS Beauty
  LIVING LUMINIZER goop, $38

• JEAN STORIES

  A welcome break from high-waist denim, these Ulla Johnson jeans have an of-the-moment seventies vibe, particularly when matched with a classic, supremely soft turtleneck. Finish off with a bright pop of red and a goes-with-anything vintage high-top.

• goop Fragrance
  EAU DE PARFUM:
  EDITION 02 – SHISO
  TRAVEL SPRAY goop, $55
• TOD’S
  Mini Tod’s Wave Backpack Tod’s, $1,745
• ROLEX
  40mm Stainless
  Steel Daytona goop, $11,295
• ULLA JOHNSON
  Lange Jeans goop, $299
• GOOP LABEL
  Nan Turtleneck Sweater goop, $595
• NIKE
  Blazer Vintage Suede Sneakers Barneys New York, $100

• grey area

  For a classic take on boy-meets-girl dressing, these menswear inspired trousers definitely have a sexy-slouchy appeal (the fact that they graze the floor takes it up a notch). Teamed with the palest pink sweater, the look stays tonal, and leaves ample room to add a fun gingham-and-velvet cross-body bag.

• FRAME
  Slouchy Turtleneck
  Sweater goop, $375
• COMMON PROJECTS
  Tennis Pro Suede Toe Sneakers La Garçonne , $498
• NILI LOTAN
  Inez Pants goop, $750
• HERMĒS
  Mini Dog Clous Rounds Bracelet Hermēs, $530
• ilia
  lipstick goop, $26
• TRADEMARK
  Hazel Gingham-Trimmed
  Velvet Shoulder Bag NET-A-PORTER, $550