White socks over black-and-white leggings can suggest a morning in a track jacket or an afternoon in polished loafers. The bright section at the ankle stays much the same; the clothes around it change the character. A loose nylon layer gives it a sporty, nostalgic feel. Soft black knitwear and glossy leather make it look more considered and a little unexpected.
Both outfits below begin with the black Dualis Horizon Leggings. Their white waistband sweeps into a side panel, with a separate white section at the opposite lower leg. That asymmetry gives the familiar leggings-and-socks combination a graphic detail worth keeping in view.
Track-jacket ease with white crew socks
Wear Horizon with a close-fitting black tank tucked into the waistband, a roomy black nylon track jacket with white sleeve stripes, white ribbed crew socks and low-profile black-and-white trainers. Add a soft black nylon shoulder bag. The combination has an old-school sportswear mood, with enough shape and contrast to feel dressed for a weekend market or a casual lunch.
Choose a jacket that blouses slightly at the hip. Its loose sleeves and rounded upper shape make an expressive partner for the close-cut leggings. Worn open over the tank, it reveals a glimpse of the white waistband and lets the curved panel continue below. The jacket's straight sleeve stripes add a second kind of line to the outfit; they give the curves something crisp to sit beside.
Let the socks have a little softness at the ankle. Their ribbed texture sits beside the smooth nylon jacket, while the white repeats the color already running through the outfit. On the darker lower leg, the sock creates a clear new band. Beside the white calf section, it becomes part of a larger pale shape. That uneven rhythm is part of Horizon's appeal.
A low-profile trainer keeps the shoe close to the foot, so the volume stays in the jacket. Black overlays on a white upper would carry the two-tone idea all the way down. A soft shoulder bag continues the relaxed shapes above; worn close under the arm, it leaves the leggings' side detail easy to see.

A generous knit, white socks and polished loafers
Keep the same leggings and switch to a generous black funnel-neck sweater, a straight knee-length black coat, fine-knit white crew socks and polished black penny loafers. Finish with a compact structured shoulder bag and small silver hoops. This is a more restrained outfit for a gallery visit or a lunch that runs into the evening.
Let the sweater fall to the low hip. Its broad, soft outline creates a different proportion from the short track jacket, covering the waistband and concentrating the visible pattern farther down the legs. Leave the coat open so the knit remains part of the picture. Below the coat's hem, the white socks bring light into the darker layers. On the side with the white calf panel, the sock can merge into that pale section, making a larger white shape than on the opposite leg.
The loafers give the white socks a sharper setting. Their low opening exposes the sock over the instep, and the polished leather contrasts with the knit above it. Use a finer sock here, worn mostly smooth over the legging hem, to keep that small area looking precise.
The bag's defined corners echo the loafers' firmer shape, while the full sweater keeps the outfit from feeling severe. There is plenty happening within the black: soft knit, the coat's long edges and a gleam of leather. The white at the ankle adds a small, playful interruption.
These two looks give the same leggings different company. The track jacket emphasizes their sporting character; the knit and loafers bring them into a quieter, more polished wardrobe. In both, visible socks become part of the outfit's personality.