SoftBank Robotics launched Pepper in 2014 as a social robot designed for customer-facing roles in shops, banks, restaurants, and hotels. The robot stood about 120 centimeters tall, had a rounded, child-like body, and communicated through a tablet mounted on its chest. Within months of its commercial deployment, a question emerged that SoftBank had not fully anticipated: can we put our brand on it?

The question came from operators, the companies that purchased or leased Pepper for their businesses. A bank wanted Pepper in bank colors. A hotel wanted Pepper in a concierge uniform. A hospital wanted Pepper in scrubs. The demand was immediate, organic, and commercial. People did not just want a robot in their lobby. They wanted their robot in their lobby, looking like it belonged to them.

The First Pepper Garments

The earliest Pepper "outfits" were crude. Operators improvised with vinyl wraps, clip-on aprons, printed bibs, and adhesive decals. These solutions were functional but unsatisfying, they looked like afterthoughts, which is exactly what they were. Pepper's body shape, with its rounded torso, tapered waist, and mobile base, did not lend itself to off-the-shelf solutions.

SoftBank Robotics recognized the demand and launched an official service offering clothes and decorative stickers for Pepper. The garments and decals were specially designed to be flexible and disperse heat, ensuring they would not impact Pepper's movements or cause overheating. This was one of the first instances of a robot manufacturer formally acknowledging that clothing was a product category associated with their platform.

Bonuni and the Professional Uniform Market

The most significant early entrant into Pepper clothing was Bonuni, a Fukuoka-based Japanese company that produced robot uniforms for organizations including Nissan and Mizuho Bank. Bonuni understood that Pepper's clothing was not a novelty. It was a branding and customer experience decision with real business implications.

A Pepper at a Nissan dealership wearing a Nissan-branded uniform communicates something different than a bare Pepper. It says: this robot is ours, it works here, it represents us. The uniform transforms the robot from a generic technology demonstration into a team member. For operators paying significant monthly leasing fees for Pepper, the uniform was a relatively small additional investment that dramatically improved the robot's integration into the business environment.

The Rierie Fashion Line

In Japan, the Rierie online shop emerged offering clothing for Pepper ranging from approximately 3,000 to 25,000 yen. The products were carefully designed and approved by computer and electrical engineers to ensure that none of the garments interfered with Pepper's movement or blocked any sensors. This engineering validation process, unusual for a fashion product, reflected the unique requirements of robot clothing.

Rierie's product range demonstrated the breadth of demand: casual wear, formal wear, seasonal outfits, and character costumes were all available. The existence of a dedicated fashion line for a single robot platform, with prices comparable to children's clothing, proved that robot fashion could be a viable retail category.

The Tokyo Fashion Show: 2017

In 2017, a Tokyo fashion show featured five outfits specifically designed for the Pepper robot. The designs included a childcare assistant uniform, an airport concierge outfit, a traditional Japanese ryokan (inn) clerk costume, a nurse uniform, and a construction worker outfit. The airport concierge uniform won the Grand Prix, while the nurse uniform received the Special Jury Prize.

This event was significant for several reasons. It treated robot clothing design as a legitimate creative challenge, worthy of competition and critical evaluation. It produced designs for specific professional contexts, not generic decorations. And it demonstrated that fashion design skills, draping, pattern-making, material selection, color theory, applied directly to robot garment design, with the addition of engineering constraints that made the challenge more interesting, not less.

Pepper proved that the market for robot clothing is real, organic, and driven by operators, not by fashion houses or robot manufacturers. The demand comes from the people who deploy robots.

NAO: The Smaller Social Robot

SoftBank's NAO, a smaller humanoid standing about 58 centimeters tall, has also attracted a clothing aftermarket. Originally designed as a research and education platform, NAO has been deployed in schools, therapy settings, and corporate demonstrations. Its human-proportioned body (unlike Pepper's more abstract form) makes it particularly amenable to miniature clothing.

NAO clothing tends toward the educational and therapeutic: outfits that help children engage with the robot, costumes for storytelling sessions, and uniforms that match the institution where the robot is deployed. The market is smaller than Pepper's but demonstrates that robot clothing demand scales with deployment, regardless of the robot's size or form factor.

Research: What Clothing Does to Robot Perception

Academic research has confirmed what Pepper operators discovered intuitively. A 2022 paper published in IEEE conference proceedings studied the "Effects of Robot Clothing on First Impressions, Gender, Human-Likeness, and Suitability of a Robot for Occupations." The research found that clothing significantly affected how people perceived the robot's gender, competence, and appropriateness for various roles.

A Pepper in medical scrubs was rated as more suitable for healthcare roles. A Pepper in business attire was rated as more competent for corporate settings. A Pepper in casual clothing was rated as more approachable for retail environments. These findings have direct implications for operators: the right uniform does not just look better. It measurably improves the robot's effectiveness in its assigned role.

The Design Constraints Specific to Pepper

Designing clothing for Pepper presented unique challenges that previewed the broader challenges of robot fashion.

Heat management. Pepper generates significant heat during operation, particularly around its chest-mounted tablet and internal processors. Clothing that trapped heat could cause the robot to throttle its performance or shut down. All successful Pepper garments incorporated ventilation channels and breathable fabrics specifically to address this constraint.

Non-human proportions. Pepper's body is not human-shaped. Its torso is rounded, its arms are thin, its waist is narrow, and its lower body is a wheeled base. Human clothing patterns cannot be adapted for Pepper. Every garment must be designed from scratch, using 3D models of the robot's body to ensure accurate fit.

Sensor preservation. Pepper uses cameras, sonar sensors, and infrared sensors for navigation and interaction. Garments must avoid these sensor locations or use transparent materials over them. This constraint shaped the design vocabulary of Pepper clothing: open necklines that clear the chest sensors, short sleeves that clear the arm sensors, and back panels that leave the rear sonar unobstructed.

Sony AIBO: The Pet Robot Wardrobe

The robot clothing phenomenon extends beyond humanoid forms. Sony's AIBO, the robotic dog first introduced in 1999 and relaunched as the ERS-1000 in 2018, has generated an enthusiastic accessories and clothing aftermarket. Available items include bandanas, scarves, leg warmers, custom-colored ears and tails, collars, and themed costumes.

Sony Japan offers official AIBO accessories including colored ears and carrying bags. Third-party creators on platforms like Etsy sell handmade items specifically designed for AIBO, including seasonal costumes and themed outfits. The AIBO accessories market, while small in revenue terms, demonstrates that the impulse to dress robots extends across all form factors, not just humanoid ones.

Legacy and Lessons

Pepper and NAO are no longer the cutting edge of social robotics. SoftBank has scaled back Pepper production, and newer platforms from other manufacturers offer more advanced capabilities. But the clothing market these robots created, and the lessons they taught, remain foundational to the field of robot fashion.

The central lesson is this: operators want branded robots. When a business deploys a robot in a customer-facing role, the first question after "what can it do" is "what can it look like." Clothing is the answer to that question, and the demand for it is as real and as urgent as the demand for the robot itself.

Every humanoid robot manufacturer now entering the market, Tesla, Figure, Unitree, XPeng, Agility, and others, will face the same demand. Their customers will want custom uniforms, branded coverings, seasonal outfits, and platform-specific accessories. The Pepper ecosystem proved that this market exists. The next generation of robot clothing companies will serve it at a much larger scale.