At the holiday Pop-in@Nordstrom shop, offerings include snowflake sweaters, penguin beanies, wool scarves and a selection of black leather harnesses — for humans, not reindeer.

The harnesses were designed by Zana Bayne, who has almost single-handedly elevated the harness from the boudoir and bondage and into fashion. She has made custom pieces for Beyoncé, Madonna, Lady Gaga and FKA Twigs, and her line is sold at high-end stores like Comme des Garçons (Rei Kawakubo owns two herself), Dover Street Market and Selfridges.

“I wear mine with a boring white oxford shirt,” said Olivia Kim, Nordstrom’s director of creative projects, who brought the line to the store, “but they also look great over dresses. It’s the perfect example of what an accessory does: accentuates clothing.”

Ms. Bayne has a similar harness philosophy. “It’s a layering piece to add to an outfit,” she said. “The physical aspect of having something cinch you in makes you hold yourself higher. But I always warn people that if you wear it out, people are going to pull on you. It brings something out not just in the wearer, but in those around her.”

Ms. Bayne also makes bags, bustiers and collars, as well as a men’s line, with prices ranging from $120 for the most basic harness to $2,300 for a leather sheath of linked hand-cut leather stars. (Gwen Stefani wears the sheath for a cover shoot for the March Cosmopolitan.)

The work is remarkable in its craftsmanship (lately she has been experimenting with laser-cutting), but what really makes it stand out is the thematic nuance and subcultural charge in each piece, which is a lot of depth for an accessory.

As with an abstract painting, what viewers see depends on their perspective. The wearer may see a flattering belt, while others see overt sexual allusions.

“I’ve never aimed to shock,” Ms. Bayne said. “My design comes from a naïve place, and I think, ‘Of course someone will wear this,’ and then it comes out ...­ I don’t want to say harder, but maybe not as innocent.” For her, it is never about subjugation.

“Wearing a collar can make you feel like the most powerful warrior in the world,” she said.

It was a frigid November day, and Ms. Bayne, 26, was in her small Midtown studio. (Everything she designs is made in New York.) There were large vases with dead flowers on the windowsill; mannequin heads were adorned with her intricately filigreed leather masks; and an assortment of harnesses in various states of completion dangled from racks. A black-and-white photo of a woman in a harness, her hands bound, hung on the wall. Ms. Bayne and her employees were dressed in head-to-toe black.

The scene may sound coven-like, but the atmosphere, and Ms. Bayne, who favors arresting Cleopatra eye shadow that accentuates her bright blue eyes, were downright chipper.

Ms. Bayne, who has a tattoo of a jeweled snake wrapped around her wrist, motioned to enormous tubes of rolled-up leather. “Everything comes in here looking like a cow, and we turn it into beautiful things,” she said.

She lives in East Williamsburg, Brooklyn, with her boyfriend, Todd Pendu. With his back-length hair and their shared fondness of pentagram imagery, they’re the neighborhood It-Goth couple.

He is the company’s director of operations and photographs its promotional campaigns. Images for the holiday collection feature a model, nude except for stockings and strategically placed accessories, crouched in a wooden box with a bow on top. The spring collection is called “Moonbathers.”

(The New York Times)