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→ 01 / Short answer

What to wear in 15–20 °C weather

Choose a breathable base and carry one light layer. Trousers, denim, midi skirts, tees, shirts, and loafers all work; the jacket is for shade, wind, and the evening.

→ 02 / 3 formulas

Outfit ideas

Pick the direction that feels like you. Each one follows the practical advice above, but the level of polish and personality changes. Swap colors and pieces for what you already own, and open a look to read its full style guide.

  1. Formula 01

    Casual

    Easy, everyday comfort

    Plain tee, chinos, an overshirt, and clean sneakers.

    Why it works
    Comfortable staples keep the outfit practical while one considered detail adds purpose.
    Choose another look if
    The dress code is formal or your everyday basics look worn rather than intentional.
    See Casual →
  2. Formula 02

    Minimalist

    Less, but better

    Plain white tee, unlined overshirt, tapered trousers, and leather sneakers.

    Why it works
    A clean silhouette keeps the outfit calm, adaptable, and easy to repeat.
    Choose another look if
    The occasion expects decoration, or the weather needs more practical layers.
    See Minimalist →
  3. Formula 03

    Streetwear

    Bold looks born on the street

    Graphic tee, straight denim, lightweight hoodie, and a cap.

    Why it works
    The light hoodie covers cooler hours without making the simple daytime base feel over-layered.
    Choose another look if
    The afternoon is humid or the plan needs a sharper shoe and more polished layer.
    See Streetwear →

→ 03 / What to skip

Mistakes to avoid

  • Dressing for the midday high when you leave early and return late.
  • Choosing synthetic layers that trap heat as soon as the sun appears.
  • Taking a bulky jacket instead of a layer that fits in your bag.
Man in a grey pinstripe suit seated on a brass cube against a warm taupe plaster wall
Man in a cream pinstripe suit and open shirt, seated on a faceted gold block against a sunlit studio wall

Modesona · Your wardrobe

You already own
these looks.

Modesona reads the pieces you already own and builds 15–20 °c looks like these from your own wardrobe.

Create these looks with clothes from your closet.