Suns

What Suns does

Suns Co., Ltd. (株式会社サンエス) is a Japanese workwear manufacturer headquartered in Fukuyama, Hiroshima Prefecture, with an operating history exceeding 90 years (parent company founded 1949; company size 501-1000 employees). The company produces the FZN 空調風神服® (Air-Conditioned Wind God Clothing) brand of battery-powered, fan-integrated garments designed for heat countermeasures in construction sites, outdoor work environments, and increasingly for general consumer use. The core technology combines textile engineering with battery-powered electric fans, offered in a dual-label lineup: Japan Label (domestic Japanese production at 24V and 12V, with up to approximately 100 L/sec airflow and 8 hours continuous operation) and Global Label (overseas-produced 24V/30V models launched March 2025). Differentiated features include Bluetooth-linked smartphone app control, IP55-rated dust/waterproof batteries, SHARP Plasmacluster ion odor reduction, three-position fan mounting, and an industry-leading 0.015% defect rate on Japan Label batteries (December 2025). The company operates a multi-channel go-to-market model spanning working wear specialty stores, uniform distributors, home centers, fashion apparel channels (since March 2025), and direct e-commerce through sun-s.work, with pricing tiers exemplified by the Kucho Wear short-sleeved shirt complete set at 17,490 yen. Revenue is generated through one-time hardware sales (garments plus fan/battery units) plus ongoing accessory/consumable sales of replacement batteries and fans.

Name

Suns

Legal name

株式会社サンエス (Suns Co., Ltd.)

Website

https://fzn-suns.co.jp

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Suns Co., Ltd. is a Japanese workwear manufacturer (501-1000 employees, Hiroshima) producing the FZN 空調風神服® brand of battery-powered, fan-integrated garments for heat countermeasures in construction, outdoor work, and consumer applications.

Ownership category

akta.pro rank

Product category

Cooling Workwear

NAICS

Battery Manufacturing (33591), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Apparel & Other Finishd Prods Of Fabrics & Similar Matl (2300)

akta.pro primary industry

Cold-Weather & Thermal Protective Workwear (CRAAALAJ)

akta.pro secondary industry

Sports & Outdoor Accessories Manufacturing (Performance Gloves/Headwear) (IMAOAFAI)

Keywords

• Cooling workwear
• Fan-equipped garments
• Battery-powered uniforms
• Heat stress apparel
• Industrial workwear

Headquarters

HQ city

Fukuyama

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Hardware sales (fan-equipped wearable clothing): Sale of air-conditioned workwear (suits, vests, shirts) with built-in fans. One-time hardware purchase model. Revenue from clothing garments and device units.
2. Battery and fan unit accessories: Sale of replacement batteries (24V, 12V models) and fan units. Consumable/accessory revenue from ongoing customer purchases.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels9 records

Core offering

Suns designs and manufactures the FZN Air-Conditioned Wind God Clothing (空調風神服) brand of battery-powered, fan-equipped workwear that combines textile engineering with electronic cooling technology. The product lineup includes the Japan Label (24V high-performance and 12V lightweight, made in Japan) and the Global Label (overseas-produced 24V/30V models), along with replacement batteries, fans, and a Bluetooth-linked smartphone app, sold to construction and outdoor workers plus general consumers seeking heat relief.

Product overview

Suns is a Japanese workwear manufacturer (株式会社サンエス) that produces the FZN 空調風神服® (FZN Air-Conditioned Wind God Clothing) brand of portable air-conditioned garments. The product portfolio consists of battery-powered fan-integrated workwear with three main product lines: Japan Label (24V high-performance and 12V lightweight models, both Japanese-made), Global Label (24V/30V overseas-produced models for broader accessibility), and the specialty FZN series of garment models. Supporting products include dedicated 24V and 12V batteries (RD9690PJ, RD9292J), fans (RD9610PH, RD9211H), and a smartphone app for Bluetooth-based control. The brand expanded in 2026 with a Shonan no Kaze collaboration (FZN with 湘南乃風), and previously collaborated with Macch House's Navy brand and EXFROZEN.

Differentiator

Problem solved

Functional benefit

Brands

• FZN: The evolved brand name combining stylized design with heat-reducing technology. Tagline: 'JUST BE COOL.' Symbolizes fusion of Japanese 'Fujin' (Wind God) technology with cutting-edge Japanese manufacturing.
• Japan Label
• Global Label
• FZN 空調風神服 with 湘南乃風

Products and services

• FZN Air-Conditioned Wind God Clothing (FZN 空調風神服) The flagship brand of portable air-conditioned workwear featuring built-in battery-powered fans that draw cooling air into the garment, designed for outdoor and construction work environments with stylish aesthetics and heat-reduction technology.
• Japan Label 24V Model Set High-performance, Japanese-made cooling workwear system with maximum 24V output, approximately 100 L/sec airflow, and approximately 8 hours of continuous operation in HIGH mode (using RD9690PJ battery and RD9610PH fan). Features Bluetooth app-linked wind control, IP55-rated dust/waterproof battery, S-mark certification, PSE compliance, and 0.015% defect rate.
• Japan Label 12V Model Set Lightweight Japanese-made cooling workwear system with 12V maximum output, approximately 68.3 L/sec airflow, and approximately 4.5 hours continuous operation on strong mode (using RD9292J battery and RD9211H fan). Includes app-linked wind control and battery monitoring, with PSE and IP55 compliance.
• Global Label 30V Model Set Large-capacity cooling workwear model with maximum 30V output, approximately 108 L/sec maximum airflow, and approximately 10 hours of continuous operation at 15V (using RD9680G battery and RD9630H fan). Features a USB port usable as an emergency charger and spin-lock fans for easy attachment. PSE-compliant and JBRC-registered.
• Global Label 24V Battery Set GL-1 (RD9580G) Overseas-produced 24V battery set with 7 protection functions, PSE compliant, compact dimensions (W77×H118×D23.2mm), weighing approximately 340g in black, with a USB port for charging small electronics.
• Global Label 24V Fan Set GL-1 (RD9530H) Spin-lock fan unit with approximately 40mm thickness and 89g per unit weight, designed for easy attachment and detachment as part of the overseas-produced Global Label lineup.
• FZN Kucho Wear Short-sleeved Shirt Entry Complete Set Entry-level cooling workwear bundle priced at 17,490 yen, comprising a short-sleeved shirt (available in blue or gray, sizes M through XL), two fans (95g each), and a rechargeable battery pack (165g), distributed through Yofuku no Aoyama stores and online.
• FZN Air-Conditioned Wind God Clothing with Shonan no Kaze (FZN・空調風神服 with 湘南乃風) Special collaborative line of FZN fan-equipped clothing marketed as self-branded strongest tech gear, featuring Shonan no Kaze group logos and mascot designs, adopted as the band's official staff uniform.
• NAVY × FZN Air-Conditioned Wind God × EXFROZEN Collaborative Wear Limited edition collaborative fan-equipped clothing combining Mack House's NAVY brand fashion apparel with Suns FZN air-conditioning technology and EXFROZEN cooling technology.

Quantifiable outcome

• Market size: Fan-equipped wear market approximately 200 billion yen (2024 season)
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature8 records

Partnerships

Three partnerships are on record, tiered minor, core and moderate.

• 株式会社マックハウス (Mack House) / NAVY brandminorStrategic or Co-development Partner · 17 August 2025Three-way collaboration between Mack House's NAVY brand, Sun-S air-conditioned wear, and EXFROZEN for collaborative fan-equipped clothing products. Released limited edition collaborative wear combining fashion and cooling technology.
• 湘南乃風 (Shonan no Kaze)coreGTM or Marketing PartnerShonan no Kaze, a Japanese reggae/dancehall band known for hits like '純恋歌' and '睡蓮花', serves as brand ambassador for FZN air-conditioned wear. Released collaborative products including best and wearable items with band logo designs. CM shooting models featured band merchandise. Band staff uniform officially adopts FZN products.
• SHARP (プラズマクラスター技術)moderateTechnology or IntegrationIntegration of SHARP Plasma Cluster ion technology into FZN products for sweat odor reduction. Maximum airflow approximately 72 L/sec, compatible with 24V battery model.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Workman Co., Ltd. Japanese workwear specialist retailer with a large network of stores across Japan, selling uniforms, workwear, and outdoor/heat-protection gear. Closely comparable to Suns' B2B and consumer workwear distribution model, though Workman focuses more on general workwear retail than fan-equipped cooling technology.
• Daiya Co., Ltd. Japanese manufacturer of work uniforms and protective apparel, including uniforms for construction, logistics, and industrial sectors. Comparable in product category (work uniforms) and target B2B customers (Japanese enterprises and construction sites).
• Sansui Co., Ltd. Japanese apparel manufacturer with experience in fan-equipped and cooling workwear, directly competing with FZN 空調風神服 in Japan's fan-attached clothing category.
• JEPLAN Co., Ltd. (BRING): Japanese apparel and textile manufacturer operating the BRING recycled-fabric workwear line. Comparable as a Japanese apparel manufacturer with sustainability-focused product differentiation serving consumer and enterprise workwear customers.

Others

• Aoyama Trading Co., Ltd. Major Japanese business suit and workwear retailer (Yofuku no Aoyama) that retails Suns' collaborative FZN fan-equipped products. Comparable as a Japanese workwear/apparel distribution channel and a reference for Suns' B2B2C route-to-market.
• Sharp Corporation: Japanese electronics manufacturer and Suns' technology partner supplying Plasmacluster ion technology for FZN products. Comparable as a Japanese manufacturer combining consumer electronics with appliance-grade quality certifications, and a relevant reference for component sourcing.

Broad incumbents

• Makita Corporation: Major Japanese manufacturer of battery-powered professional tools and outdoor equipment with deep expertise in lithium-ion battery systems and professional-grade cooling wearables/outdoor gear. Comparable technology backbone (battery, IP-rated enclosures, professional durability) and target construction/outdoor worker customers.
• Nissen Co., Ltd. Large Japanese apparel e-commerce company with broad workwear and lifestyle categories. Comparable as a Japanese apparel channel partner that Suns' fan-equipped workwear could leverage for consumer expansion.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/suns_uniform
• YouTubeyoutube.com/channel/UCcLgquqN8Q3P37kz_yJyXFg
• Instagraminstagram.com/sunsseni

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Suns