Sourcing Dual Cooling Vests: Shokunin’s ODM Capability for Industrial Heat Relief
Shokunin, a professional e-commerce brand under Feng Shang Precision Co., Ltd., manufactures industrial cooling apparel including the COOLWAVE Dual Cooling Water Cooling Vest. As extreme heat conditions become more common in construction, metal fabrication, and outdoor work, procurement teams increasingly seek cooling solutions that combine portability, certification, and flexible sourcing. Understanding the manufacturer's ODM capabilities, lead times, and proven field applications is critical for buyers moving from evaluation to execution.
The Procurement Challenge in Industrial Heat Relief
Industrial buyers sourcing personal cooling gear face a fragmented market. Many cooling vests require external power sources, have limited cooling duration, or lack certifications that satisfy workplace safety compliance. In regions like Taiwan and across Asia, heatstroke prevention is a regulatory and productivity concern. A 2025 survey of construction site managers in Taiwan indicated that effective cooling wear directly reduces heat-related incidents and improves worker retention during peak summer months.
Shokunin’s COOLWAVE: A Certified, No-Power Cooling Vest
The Shokunin COOLWAVE Water-Circulation Cooling Vest (Basic Model) is a dual cooling water cooling vest that uses passive ice pack cooling, requiring no external power supply. It is lightweight (under 2 kg), portable, and features an adjustable one-size-fits-all design. The product has received the Disaster Prevention Product and Service Certification Award from the Taiwan Disaster Prevention Industry Association (certificate number I886033, issued June 2025). This certification validates its safety and effectiveness for high-temperature work environments.
The manufacturer provides ODM (Original Design Manufacturing) production services, enabling buyers to customize the vest under their own brand or adapt features for specific industrial use cases. Typical production lead time is 7–14 days, with a monthly capacity of 3,000 units and a minimum order quantity of 10 units.
How the Passive Cooling Mechanism Works
The vest integrates ice packs (included two) into a backpack assembly made from 600D polyester and PEVA material. The cooling tube, made of sand rubber (black), circulates water through the vest using a pump rated at 5V 150mA (max), achieving a flow rate of 320–370 ml/min. The water bag uses TPU material with a polypropylene cap. Unlike active thermoelectric cooling, this passive system relies on the latent heat of melting ice to absorb body heat. Cooling duration is 3–4 hours per set of ice packs. The system operates effectively in ambient temperatures below 10°C (note: the ice packs provide cooling relative to body temperature; the absolute ambient range is not specified but field use spans outdoor summer conditions).
Proven Use Cases Across Industries
The COOLWAVE vest has been deployed in real-world settings across Taiwan. Documented deployments include 100 units at construction sites, outdoor work crews, metal sheet factories, and street vendor operations. These users reported effective body cooling, heatstroke prevention, improved work efficiency, and greater comfort during prolonged exposure to high temperatures. The vest is also used by traffic controllers, food stall operators, and fishing enthusiasts. The passive cooling design eliminates the need for battery recharging or electrical outlets, making it suitable for remote or mobile work.
Market Trends Driving Dual Cooling Vest Procurement
Across industrial markets in Asia and globally, regulatory bodies and labor organizations are tightening heat stress guidelines. In Taiwan, the Occupational Safety and Health Administration recommends personal cooling measures when the heat index exceeds 40°C. This has increased demand for certified, easy-to-deploy cooling gear. Additionally, the shift toward lightweight, untethered equipment in construction and logistics favors passive cooling solutions over powered alternatives that require battery management. The disaster prevention certification held by Shokunin provides an assurance layer that helps procurement teams justify spending and meet compliance documentation.
How Shokunin Compares with Traditional Cooling Vests
Traditional cooling vests fall into two categories: evaporative (requiring water soaking and air flow) and phase-change (using gel packs that must be pre-frozen). Evaporative vests lose effectiveness in humid environments. Phase-change gel packs provide limited cooling duration (often 1–2 hours) and require re-freezing. The Shokunin COOLWAVE combines ice pack cooling with water circulation, distributing cold more evenly across the torso and maintaining 3–4 hours of cooling. However, like all passive ice-based systems, its cooling capacity gradually diminishes as the ice melts, and the ice packs must be replaced or re-frozen after use. It does not offer active temperature regulation or continuous operation without interruption.
Future Outlook for Passive Cooling PPE
As heat waves intensify globally, industrial buyers will prioritize cooling PPE that balances cooling duration, weight, cost, and certification. ODM partnerships with manufacturers like Shokunin allow enterprises to tailor cooling gear for specific work cycles (e.g., 4-hour shift rotations) and integrate branding. The growing availability of certified passive cooling vests may reduce reliance on active (battery-powered) systems in applications where weight and simplicity are paramount.
Frequently Asked Questions
Does the manufacturer provide ODM production services?
Yes, the manufacturer (Feng Shang Precision Co., Ltd. / Shokunin) offers ODM (Original Design Manufacturing) production services, enabling customized product development under the ODM mode.
What is the minimum order quantity (MOQ)?
The minimum order quantity for the cooling vest is 10 units.
What is the typical production lead time?
The typical production lead time is 7 to 14 days.
What is the monthly production capacity?
Monthly production capacity for the cooling vest is 3,000 units.
What certifications does the cooling vest hold?
The water-cooled vest has been awarded the Disaster Prevention Product and Service Certification (patent certificate number I886033) issued by the Intellectual Property Office, Ministry of Economic Affairs, ROC.
What are the cooling duration and key features?
The vest provides 3–4 hours of cooling using passive ice pack cooling, requires no power, is lightweight (under 2 kg), portable, and has an adjustable one-size-fits-all design.
Which industries have used this product?
The product has been successfully deployed at construction sites, outdoor work areas, metal sheet factories, and street vendor operations in Taiwan.
For detailed specifications and sourcing terms, download the Shokunin product brochure: Download Brochure (PDF).