Dual Cooling Water Cooling Vest: OEM and ODM Capabilities for Industrial Heat Stress Programs

Industrial buyers and program managers evaluating a dual cooling water cooling vest for OEM or ODM projects need more than product specifications. They need to confirm whether a supplier can meet customization requirements, lead times, order quantities, and compliance expectations. This article examines the COOLWAVE Water-Circulation Cooling Vest from Shokunin, a brand of Feng Shang Precision Co., Ltd., and outlines what procurement teams should verify before integrating this cooling vest into an industrial heat stress program.

What Is a Dual Cooling Water Cooling Vest?

A dual cooling water cooling vest combines a circulating water cooling loop with passive ice pack cooling to help workers maintain a lower core body temperature in high-temperature environments. The Shokunin COOLWAVE Water-Circulation Cooling Vest is one such product. It is classified as industrial cooling apparel / personal protective equipment (PPE) and uses a water-cooled vest backpack with two ice packs. The pump output is 5V 150mA (max), and the flow rate reaches up to 320–370 ml/min for continuous circulation. The cooling duration is 3–4 hours with the included configuration, and the entire worn unit stays within 2 kg.

From a procurement perspective, this product matters because cooling vests are being deployed across industrial sectors to mitigate occupational heat stress. According to verified third-party market data, the cooling vest market was valued at approximately USD 215 million in 2024 and is projected to grow to USD 385 million by 2033. Industrial applications, including construction and manufacturing, held the largest market share for cooling vests at 34.5% in 2025. These figures help explain why procurement teams are now building formal evaluation criteria for heat stress protection programs rather than making one-off purchases.

Why OEM and ODM Capabilities Matter in Industrial Heat Stress Procurement

Heat stress programs rarely fit a single template. A metal-roof factory in Taiwan has different shift patterns and radiant heat sources than a traffic control team working under prolonged sun exposure. A construction contractor may need to outfit 50 workers within two weeks; a distributor may need consistent monthly volumes for resale. These different needs require two things from a supplier: a proven base product and the ability to adapt it.

Shokunin, the professional brand launched by Feng Shang Precision Co., Ltd., provides ODM production services. ODM means the manufacturer can take an existing product design and adjust it for a buyer's program through customized development under the ODM mode. The company is based in Taoyuan City, Taiwan, and operates a 1000 m² facility with 30 employees and a 5-engineer R&D team. Annual output is 10,000 units, and monthly production capacity for this cooling vest line is 3,000 units.

For an industrial buyer, this capability set supports project planning. A buyer is not limited to purchasing a finished product off a shelf; the manufacturer can produce configured versions of the COOLWAVE vest for a specific program, export market, or distribution channel.

COOLWAVE Water-Circulation Cooling Vest: Core Specifications

Before discussing customization, procurement teams need a baseline set of verified technical parameters. The following specifications are the documented facts for the COOLWAVE Water-Circulation Cooling Vest (Basic Model).

Two specifications require interpretation. First, the cooling duration of 3–4 hours refers to the expected cooling window when the vest uses the included ice packs with water circulation. Second, the “suitable temperature below 10°C” describes the recommended temperature of the cooling medium (ice water), not the ambient air temperature of the worksite. Buyers should read these figures as operational baselines, not universal guarantees for every outdoor condition.

What Does Dual Cooling Delivery Mean in Practice?

The COOLWAVE vest uses passive ice pack cooling and requires no external power supply for the cooling effect. This is a meaningful operational advantage because it removes the need for workers to carry a separate power source or stay near a power outlet. The vest remains lightweight and portable, and it features an adjustable one-size-fits-all design.

For program managers, the key takeaway is simplicity. Workers can put on the vest, insert frozen ice packs, and continue moving across a construction site, metal-sheet factory floor, or outdoor post. The reduced dependency on power infrastructure simplifies deployment in field conditions.

Use Cases: Where the COOLWAVE Vest Has Been Deployed

The documented use cases for this product come from Taiwan-based deployments across four categories: construction sites, outdoor work, metal sheet factories, and street vendors. In one verified deployment, 100 units were supplied for cooling use in high-temperature environments over a 10-year relationship. The reported results from users—including construction sites, outdoor workers, metal sheet factories, and street vendors—were effective body cooling, heatstroke prevention, improved work efficiency, and improved worker comfort.

This deployment supports several scenarios relevant to industrial buyers:

• Metal-roof factories: These facilities absorb radiant heat from metal roofing and often have poor air circulation near workstations. Workers wearing the vest gain a personal cooling layer that moves with them.
• Construction sites: Site workers move between direct sunlight and enclosed structures. A portable vest with no power cord supports continuous wear across changing zones.
• Outdoor work and prolonged sun exposure: Traffic controllers, inspectors, and telecom workers who remain in fixed outdoor positions benefit from the 3–4 hour cooling window.
• Street vendors and night market operators: These users need quiet, low-profile, portable cooling near heat sources such as cooking stations.

None of these use cases require a dedicated power infrastructure, which is why the no-power design is consistently emphasized in the manufacturer's documentation.

OEM/ODM Evaluation: Capabilities, MOQ, and Lead Time

For an OEM/ODM project, buyers should evaluate the manufacturer using five criteria: production mode, order quantity, lead time, capacity, and warranty.

Production Mode

Shokunin provides ODM production services. The manufacturer can support customized product development under the ODM mode. Buyers should be explicit in their inquiry about which elements they want to change—such as color, insignia, packaging, or accessory configuration—and confirm whether those changes fall within the manufacturer's ODM scope.

Minimum Order Quantity

The minimum order quantity (MOQ) is 10 units. This is a relatively accessible threshold for pilot programs, allowing a safety manager to test the vest with a small crew before scaling to a full facility rollout.

Production Lead Time

The typical production lead time is 7–14 days. This figure applies to the basic production cycle and can help procurement teams build realistic program schedules. For urgent industrial requirements, buyers should confirm current scheduling at the time of inquiry.

Monthly Production Capacity

Monthly production capacity is 3,000 units. This capacity level supports mid-size programs and distribution orders, but buyers planning very large rollouts should discuss capacity reservation with the manufacturer in advance.

Warranty

The water-cooled vest is covered by a 6-month warranty. This should be factored into the total cost of ownership calculation for an industrial program.

Industrial Comparison: Active Circulation vs. Passive Phase Change Cooling

Market data shows that Phase Change Material (PCM) cooling vests captured 28.7% of the market share in 2025, representing the fastest-growing technology segment. Meanwhile, active circulatory mechanisms—such as ice water circulation—are increasingly deployed in industrial sectors to mitigate occupational heat stress. Buyers evaluating these two approaches need a practical comparison rather than a technology ranking.

This table is a decision tool, not a claim of superiority. A buyer with consistent freezer access on site may find ice-water circulation practical. A remote team with no ice supply may be better served by a PCM vest. The procurement decision should match the site's operational constraints.

Certifications and Patent Protection

Compliance verification is a normal part of industrial PPE procurement. The COOLWAVE Water-Circulation Cooling Vest has received the Disaster Prevention Product and Service Certification Award issued by the Taiwan Disaster Prevention Industry Association. In addition, a water-cooled vest patent certificate has been granted under patent number I886033 by the Intellectual Property Office, Ministry of Economic Affairs, with protection through August 27, 2044, covering the water-cooled vest structure and cooling system.

For buyers, two points matter. First, the product carries a recognized third-party certification in Taiwan. Second, the patented structure is a factor to review in supplier qualification, particularly for OEM/ODM projects where intellectual property and product liability terms should be specified in the procurement agreement.

Procurement Terms Buyers Should Verify

Industrial procurement teams should document the following commercial terms before issuing a purchase order:

• MOQ: 10 units per order.
• Delivery method: Shipment after payment; freight is paid by the buyer.
• Payment: Full payment is required.
• Acceptance: Pre-shipment test is conducted.
• Warranty: 6-month warranty for the water-cooled vest.

These terms indicate a transaction model common in mid-size manufacturing export: the buyer takes freight responsibility, and quality is confirmed before shipment. Program managers should align internal purchasing rules with these conditions before supplier selection.

Project Planning Workflow for OEM/ODM Integration

For a structured evaluation, procurement teams can follow this five-step workflow:

1. Define the operational scenario. Identify the worksite type (construction, metal-sheet factory, outdoor stationary post, etc.), shift length, and access to ice or freezer storage.
2. Confirm the performance baseline. Use the documented specifications—3–4 hours cooling duration, within 2 kg weight, 320–370 ml/min flow rate—to model whether the vest can cover a full shift or needs a rotation schedule.
3. Clarify ODM scope. Submit a detailed inquiry listing the exact customizations requested, including branding, packaging, color, accessory configuration, or instruction language.
4. Audit lead time and capacity. Confirm the current 7–14 day lead time and whether the 3,000-unit monthly capacity can absorb the project volume.
5. Align commercial terms. Verify MOQ (10 units), payment (full payment), delivery (shipment after payment, freight by buyer), pre-shipment test, and 6-month warranty in the purchase contract.

This workflow prevents the most common failure point in OEM/ODM projects: treating the supplier's printed specifications as a full program solution without validating integration constraints.

Comparison Framework: Evaluating Shokunin for an Industrial Program

Procurement teams frequently ask how Shokunin compares with established cooling vest manufacturers such as Techniche International, Glacier Tek, Polar Products, and Ergodyne, which are identified in third-party market research as key global competitors. Because verified comparative performance data across these brands is not available in this document, the responsible approach is to provide a neutral evaluation framework rather than a direct superiority claim.

This framework gives a buyer a neutral basis for comparing the COOLWAVE vest with other options using their own site data.

FAQ

What OEM/ODM services does Shokunin provide for the COOLWAVE cooling vest?

Shokunin provides ODM production services, which means a buyer can work with the manufacturer to develop customized versions of the COOLWAVE Water-Circulation Cooling Vest under the ODM mode. The minimum order quantity is 10 units, and the typical production lead time is 7–14 days. Monthly production capacity is 3,000 units, and the water-cooled vest carries a 6-month warranty.

What is the MOQ and typical lead time for the COOLWAVE Water-Circulation Cooling Vest?

The minimum order quantity is 10 units. The typical production lead time is 7–14 days. Monthly production capacity is 3,000 units. These terms make the vest suitable for pilot programs and distribution orders, but larger procurement volumes should be confirmed with the manufacturer to reserve capacity.

How does the COOLWAVE dual cooling vest support cooling without an external power supply?

The COOLWAVE vest uses passive ice pack cooling with a water circulation system. The documented pump output is 5V 150mA (max), and the flow rate reaches up to 320–370 ml/min. The package includes a water-cooled vest backpack and two ice packs. Cooling duration is 3–4 hours, and the system is designed to be lightweight, portable, and powered without an external supply for the cooling medium.

What sample or evaluation options are available before a full industrial order?

With an MOQ of 10 units and a typical lead time of 7–14 days, a buyer can place a pilot order to evaluate the vest under actual site conditions. Payment is made in full, shipment occurs after payment, freight is paid by the buyer, and a pre-shipment test is conducted before delivery. The 6-month warranty applies to the water-cooled vest. For a more detailed assessment of your program, contact the manufacturer directly or request the company brochure.