The Stalvey men's duffel.

A favorite accessory brand of Beyoncé and Gigi Hadid is going to be available for men.

Stalvey, an exotic skin accessories collection created by Jason Stalvey and popular with many female celebrities, will launch its first men’s collection for fall.

The inaugural lineup, which will include duffels, backpacks, caps and small leather goods, will be exclusive to Moda Operandi, an upscale e-commerce site that just expanded into men’s wear this month.

Stalvey, who has a background in science and medicine, launched his women’s line with Barneys New York in the fall of 2014, and it’s currently offered there as well as at The Webster, Harrods, Lane Crawford and other upscale retailers.

But while he’s made his mark in women’s wear, it’s actually men’s where he got his start.

Stalvey said that while his background wasn’t in fashion, he got into the business after being unable to find an alligator skin duffel bag that fit his needs. “I thought, it can’t be that hard,” he said. “Well, it was that hard.” But he stuck with it, found artisans in the U.S. and Italy that were able to work with exotic skins, and eventually created what he believed to be the perfect duffel. That led to him branching out into women’s handbags, which caught the eye of Barneys. “Once you figure out the formula, it’s not that hard to expand,” he said.

Today, the brand is best known for its classic handbags in lizard, alligator and ostrich skins. He also offers an alligator baseball cap that bridges the cap between luxury and street style.

In addition to his core collection, at the end of last year, Stalvey also launched a 24-karat gold capsule collection where gold is actually embedded into the skins, a process that took over two years to perfect. It was developed in partnership with a leading aeronautic laboratory and a luxury tannery in France.

Stalvey said he opted to get into men’s now because of the booming popularity of the category. “Four years ago, the market was very different, but the men’s market today has really developed,” he said. “Retailers are pouring money into redoing their men’s departments so it’s a really great time for the launch.”

The line will be quite upscale with card cases starting at $450, toiletry kits for $5,000 to $6,000 and the “crème de la crème,” he said, the alligator duffel retailing for $25,0000. “We’re taking exotics in a new and exciting direction,” Stalvey said. As with the women’s line, he works with classic shapes but then gives them a more-contemporary twist. “That translates well to Moda Operandi,” he said.

The backpacks come in a variety of colors.

The backpacks come in a variety of colors. 

With prices at that level, Moda Operandi’s luxury bent — and its new men’s offering — was the reason he chose that company for the launch. “In a moment when everything is streetwear oriented, Moda Operandi is giving brands — even those that have a streetwear edge — a more elevated platform,” he said. “That really resonated with me.”

Stalvey said he hopes that male celebrities will also be drawn to his men’s collection. Because much of the street style is now focused on the actual streets instead of just red carpets, he said, “it’s a great time to tap into that,” particularly for men.