Portable Cooler Lunch Box with Insulation
SEALOCK COOLER, a trusted China Manufacturer and Supplier specializing in high quality outdoor equipment.Our Cooler Lunch Box range is designed to keep your meals fresh, your drinks cool and your outdoor activities easier.Whether camping, fishing, biking, work or school, our lunch boxes offer durability, insulation and portability.
What is Cooler Lunch Box?
Cooler Lunch Box is more than just an ordinary lunch bag.Our lunch boxes are designed to keep food and drinks warm for long periods of time, whether refrigerated or kept warm, while being portable, leakproof and spill proof so you can enjoy delicious meals anytime, anywhere.
Main features
Long-term heat preservation/cold preservation
Leak-proof design to avoid food contamination inside the bag
Lightweight and portable, easy to carry or shoulder
Multi-compartment design for separate meals, snacks and beverages
High quality materials ensure durability
- View as
Portable Lunch Cooler
SEALOCK COOLER focuses on the research and manufacturing of Portable Lunch Coolers. Our factories in China and Vietnam have established comprehensive quality control systems and hold six international certifications, including SMETA, HIGG, and SCAN. We firmly believe that high-quality products are the foundation of cooperation, and honest management is the cornerstone of long-term development. We look forward to working with you and becoming your most reliable supply chain partner in the Chinese market.
Leakproof Lunch Box Cooler
We have been focusing on the research and production of Leakproof Lunch Box Cooler for many years, with factories in China and Vietnam, and have established a complete quality control system. We have passed international certifications such as SMETA, HIGG, SCAN, etc. We have always believed that good products are the beginning of cooperation, and honest management can go further. I hope to cooperate with you and become your most reliable supplier in the Chinese market.
Core Advantages
When choosing SEALOCK COOLER, you are not just buying a product, you are guaranteed professional design and reliable production:
Excellent thermal insulation performance: multi-layer insulation material, high-density foam + waterproof lining, to ensure that meals keep warm/cold for several hours.
Durable materials: high-strength fabric, reinforced stitching, waterproof zippers ensure long-term use.
Customizable design: size, color, LOGO and interlayer layout can be adjusted according to brand requirements.
Comfortable and portable: Adjustable shoulder strap + portable design, easy to carry all day use.
Professional factory support â € "China and Vietnam factories guarantee stable supply, fast delivery and competitive prices.
Application Scenarios
Our Cooler Lunch Box is designed to be flexible and suitable for a variety of outdoor and everyday scenarios:
Outdoor Adventure: Camping, Hiking, Biking, Fishing-Keep Food Fresh, Drinks Cool
Office & School: Ideal for lunch for students and office workers
Travel: Trunk, backpack or carry-on
Certification and Quality Assurance
At SEALOCK COOLER, quality is at our core:
ISO9001 quality management system
BSCI / SMETA Social Responsibility Certification
Higg Index Environmental sustainability
IPX8 waterproof patent
Each batch is subjected to rigorous testing: zipper durability test, peel strength test, wet/dry color fastness test, leak resistance test.
Why choose our products?
| Advantage | SEALOCK COOLER | Others |
| Factory Direct | Yes | Usually via traders |
| Customization | Color, logo, compartments | Limited |
| Lead Time | 20–30 days | 30–60 days |
| Warranty & Testing | Full QA, lab-tested | Minimal or none |
| Export Experience | EU & US clients, tariff-saving Vietnam production | Limited |
Customer Trust and Brand Endorsement
1. Long-term partner brands: Stanley, Hydro Flask, Osprey, etc.
2. Over 1000 skilled workers in 3 factories ensure stable production.
3. Professional R&D and technical team for continuous innovation.
FAQ
Q: How long does the Cooler Lunch Box keep food hot/cold?
A: Depending on the capacity and insulation material, it can maintain the temperature for 6–12 hours.
Q: Can the size and logo be customized?
A: Yes, size, color, logo, and compartments are all customizable.
Q: Can I place a small batch order for testing?
A: Yes, samples can be delivered in 10–12 days.
Q: Can I choose the manufacturing plant?
A: You can choose China or Vietnam. The Vietnam factory can save tariffs for European and American customers.
As a reliable Cooler Lunch Box manufacturer and supplier in China, we have our own factory. If you want to buy high-quality outdoor soft coolers, please contact us.
