Dual Cooling Water Cooling Vest: Specifications & Certifications

Shokunin is a professional e-commerce brand launched by FENG SHANG PRECISION CO., LTD., a Taiwan-based manufacturer established in 2009. The dual cooling water cooling vest — sold as the COOLWAVE Water-Circulation Cooling Vest — is an industrial cooling apparel / personal protective equipment (PPE) product that circulates ice-chilled water to cool the body during high-temperature work. This article consolidates the documented specifications, materials, certifications, and supply terms for the COOLWAVE series so procurement teams can verify constraints before requesting samples or quotes.

Problem: Heat-stress buyers need verifiable constraints, not descriptions

The Shokunin COOLWAVE dual cooling water cooling vest is documented for high-temperature industries such as construction sites, outdoor work, metal sheet factories, and street-vendor operations. In these environments, occupational heat stress is a recognized risk, and market data reflects the scale of the need: industrial applications, including construction and manufacturing, held the largest share of the cooling vest market at 34.5% in 2025 (Dataintelo). When research moves into evaluation, buyers typically need to verify four types of constraints before purchase — compliance (certifications and patents), capability (measured cooling parameters), budget quantity (MOQ and order terms), and supply (lead time, capacity, warranty). The COOLWAVE series from FENG SHANG PRECISION CO., LTD. is documented along each of these dimensions in the sections below.

Industry background: Cooling vest market data

The COOLWAVE series from FENG SHANG PRECISION CO., LTD. is positioned within a cooling vest market that, according to Dataintelo, was valued at approximately USD 215 million in 2024 and is projected to reach USD 385 million by 2033. The broader category of personal cooling devices was valued at USD 25.16 billion in 2024 and is projected to reach USD 94.85 billion by 2035 (Market Research Future). Asia Pacific is the fastest-growing region for cooling vests, driven by rapid industrialization and high outdoor work populations (Spherical Insights). In industrial settings, active circulatory mechanisms — including ice water circulation — are increasingly deployed to mitigate occupational heat stress (Strategic Market Research).

The technology landscape is also documented: Phase Change Material (PCM) cooling vests captured 28.7% of the market in 2025 and represent the fastest-growing technology segment (Dataintelo). Key global competitors in the cooling vest market include Techniche International, Glacier Tek, Polar Products Inc., and Ergodyne (Spherical Insights). In this context, an ice-water circulation vest is a specific technology choice: ice packs supply the cold source, and a water pump moves chilled water through tubing across the body. Cooling systems generally must comply with ISO 9001:2015 for quality management and often require CE or UL marks for electrical components (ISO / UL).

Solution: Shokunin COOLWAVE dual cooling water cooling vest

The Shokunin COOLWAVE dual cooling water cooling vest — documented as the COOLWAVE Water-Circulation Cooling Vest — is an industrial cooling apparel / personal protective equipment (PPE) product. The documented product line includes the COOLWAVE Water-Circulation Cooling Vest (Basic Model), (Professional Model-Black), (Professional Model-Gray), and (Professional Model-Blue). The listed models share the same technical parameters in the supplier data.

Documented specifications

• Cooling duration: 3–4 hours
• Weight: within 2 kg
• Suitable temperature: below 10°C
• Pump output: 5V 150mA (max)
• Flow rate: max 320–370 ml/min
• Contents: water-cooled vest backpack ×1, ice packs ×2

Material list

• Shoulder strap material: 600D polyester
• Material: PEVA
• Water bag material: TPU
• Water bag cap: polypropylene
• Cooling tube: sand rubber (black)

Design and operation attributes

The documented design attributes are: lightweight, waterproof, breathable, one-size-fits-all design, adjustable vest straps, and a portable backpack design. The intended operation mode is passive cooling (ice pack activated). The system uses two reusable ice packs as the cold source, while the pump (5V 150mA max) circulates water through the sand rubber cooling tube at up to 320–370 ml/min. The documented applicable industries are construction workers, outdoor workers, food stall operators, street vendors, traffic controllers, and metal sheet factories.

Certification and compliance

The COOLWAVE Water-Circulation Cooling Vest (Basic Model) is protected by Patent No. I886033, issued by the Intellectual Property Office, Ministry of Economic Affairs, under the Patent Act of the Republic of China, applicable to the ROC (Taiwan) market. The patent covers the water-cooled vest structure and cooling system. It was issued on June 1, 2025 and is valid through August 27, 2044.

In addition, the COOLING water-cooled vest manufactured by FENG SHANG PRECISION CO., LTD. received the Disaster Prevention Product and Service Certification Award from the Taiwan Disaster Prevention Industry Association. This certification validates the product's compliance with specific disaster prevention standards.

How the vest works: Step-by-step breakdown

1. Kit contents. The packaged system includes a water-cooled vest backpack and two ice packs.
2. Cold-source activation. The system activates when the ice packs are installed; the documented operation mode is passive cooling (ice pack activated).
3. Water circulation. A pump with a max output of 5V 150mA moves water through the vest.
4. Distribution. Water flows through the sand rubber (black) cooling tube at a max rate of 320–370 ml/min.
5. Fit adjustment. The vest uses a one-size-fits-all design with adjustable shoulder straps made of 600D polyester.
6. Cooling duration. Each cooling cycle is documented at 3–4 hours.

Use cases

COOLWAVE cooling vests from FENG SHANG PRECISION CO., LTD. are documented for personal heat-stress relief in high-temperature working conditions. Applications cover construction sites, outdoor work, metal sheet factories, and street vendors. In Taiwan, a documented use case involved 100 units applied for cooling in a high-temperature environment over a 10-year relationship; reported results include effective body cooling, heatstroke prevention, improved work efficiency, and greater worker comfort. Site photos from metal sheet factory and night-market vendor environments illustrate the deployment range.

Procurement comparison: Documented product data vs. market context

For the Shokunin COOLWAVE series, procurement teams can compare documented supplier data with third-party market references using the table below. This table is not a ranking; it is a verification aid for procurement decisions.

Evaluation checklist for constraint-based procurement

For the Shokunin COOLWAVE series, the verification checklist below covers the main constraint categories for buyers in the research-to-evaluation stage:

• Compliance: record the patent/certification number, issuing authority, market scope, and expiry date.
• Parameters: confirm cooling duration, weight, suitable temperature, pump output, flow rate, material list, and in-box contents.
• Budget quantity: confirm MOQ, monthly capacity, and production mode (ODM availability).
• Sample / pilot: request the product brochure, sample availability, and project-fit discussion before scaling.
• Supply support: confirm lead time, export markets, and after-sales warranty duration.

Documented values for these constraints are: MOQ 10 units; monthly capacity 3,000 units; lead time 7–14 days; export markets global; and a six-month warranty for the water-cooled vest.

FAQ for procurement teams

Conclusion and next step

The dual cooling water cooling vest in the Shokunin COOLWAVE series is a documented industrial cooling solution with a 3–4 hour cooling duration, sub-2 kg backpack design, patent protection (I886033) for the vest structure and cooling system, and a disaster-prevention product certification from the Taiwan Disaster Prevention Industry Association. For buyers, the practical next step is to confirm current pricing, sample availability, and ODM delivery planning against project-specific requirements.