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leading Cooler Bag Manufacturer
What a Professional Cooler Bag Manufacturer Actually Does
Soft Cooler Bags · Backpack Coolers · Thermal Lunch Bags · Delivery Coolers · Outdoor Coolers · OEM/ODM Development
Cooler bags are temperature-control products, and therefore require engineering far beyond normal sewing bags.
A great cooler bag must combine:
- Thermal insulation layers
- Air-tight internal lining
- Leak-proof construction
- Waterproof and stain-resistant exterior
- Strong, durable structure under weight
- Anti-bacterial, food-safe inner materials
- Long-lasting ice-retention performance
- Easy-clean functionality
- Brand-driven aesthetic design
Lovrix manufactures cooler bags trusted by:
- Outdoor & picnic brands
- Beverage companies
- Meal prep / nutrition companies
- Food delivery services
- Promotional gift companies
- Cooler startups
- Retail chains
- Amazon/Shopify sellers
We design cooler bags that keep cold longer, stay clean, perform outdoors, and reflect your brand identity with superior manufacturing quality.
What a Professional Cooler Bag Manufacturer Actually Does
Cooler bag manufacturing requires thermal science + material engineering + functional bag construction.
Lovrix provides a full-stack cooler bag engineering system:
1. Thermal Insulation Engineering (The Core of Cooler Bags)
The heart of a cooler bag is its insulation system.
Lovrix offers multiple thermal engineering options:
Standard 5-Layer Insulation System
Used for lunch bags and mid-range coolers:
- Outer Layer
Water-resistant polyester / nylon / TPU
Controls heat absorption
- Insulation Foam Layer
EPE foam (4–8mm)
Reduces heat transfer
- Reflective Thermal Barrier
Aluminum foil / PEVA film
Reflects radiant heat
Improves cooling efficiency
- Moisture Control Layer
- Prevents condensation damage
- Food-Grade Inner Lining
Welded PEVA
BPA-free, FDA safe
Advanced Multi-Layer Insulation (For premium coolers)
Used for high-performance soft coolers:
- 6–10mm high-density EPE foam
- Multi-layer aluminum thermal film
- High-reflectivity PEVA
- Air-tight welded interior
- Outer material with heat-blocking pigment
Retention capability: 8–18 hours with ice.
Ice-Retention Optimization
Ice retention depends on:
- Foam thickness
- Foam density
- Thermal reflectivity
- Crack-free lining
- Seam sealing quality
- Closing system (zipper, velcro, roll-top)
- Exterior material heat absorption
- Bag volume vs air ratio
We adjust each factor based on your target performance.
2. Leak-Proof & Liquid-Impenetrable Lining Technology
A cooler bag NEEDS to be leak-proof.
Lovrix provides:
Heat-Sealed PEVA Lining
- High-frequency welding (no needle holes)
- Anti-leak structure
- Food-grade, BPA-free
- No chemical smell
TPU Welded Liner (Premium)
- High elasticity
- Extremely durable
- 100% waterproof
- Heat-resistant and cold-resistant
- Ideal for premium coolers
Anti-Bacterial Inner Material
Available for food-safety-focused brands.
All linings pass:
- Water-tightness test
- Tensile strength test
- Oil & food-resistance test
- Odor-free test
3. Waterproof Outer Material Engineering
Cooler bags face:
- Rain
- Cold-water condensation
- Beach moisture
- Drink spills
- Dirt, oil, sand
We provide:
TPU-laminated fabric
- Fully waterproof
- Modern appearance
- Easy to wipe
Tarpaulin / PVC shell
- Heavy-duty waterproofing
- Outdoor-grade durability
PU-coated polyester
- Water-resistant
- Stain-resistant
Ripstop nylon
- Tear-resistant
- Lightweight
- Perfect for backpack coolers
Your bag remains dry, clean, and durable in all conditions.
4. Structural Engineering for Stability & Durability
Cooler bags often carry:
- Drinks
- Ice
- Lunch boxes
- Containers
- Food trays
We engineer for:
Anti-collapse side panels
- PE board
- EVA rigid panels
- PP sheets
Load-bearing handle reinforcement
- Box-stitching
- Bar-tack stitching
- Heavy-duty webbing
Zipper reinforcement
- Extra-wide teeth
- Waterproof zipper option
- Lock-stitched zipper installation
Compression-resistant foam
- Maintains structure under pressure
A Lovrix cooler bag stays upright, durable, and stable even when full.
5. Comfort & Ergonomics
Especially for backpack coolers and delivery bags.
We offer:
- Padded shoulder straps
- Thick EVA back panel
- Air mesh ventilation
- Ergonomic handle design
- Balanced weight distribution
- Removable shoulder straps
- Anti-slip pads
6. Full OEM/ODM Customization
Lovrix allows complete customization:
- Custom structure
- Custom insulation thickness
- Custom shape (square, tall, oval, cylinder, flat)
- Custom lining type
- Custom pockets, bottle holders, mesh areas
- Custom color & pattern
- Custom logos, pullers, patches, trims
- Custom packaging
- Private label manufacturing
You can build an entire cooler bag collection with Lovrix.
What Brands, Buyers & Customers Care About Most
Ice Retention Time
Customers EXPECT the bag to keep cold for a specific duration.
Lovrix can engineer:
- 4–6 hours (lunch bags)
- 8–12 hours (soft coolers)
- 12–18 hours (premium insulated coolers)
Performance depends on:
- Foam thickness
- Lining reflectivity
- Fabric UV-absorption
- Zipper sealing
- Bag size
We test every prototype until it meets your target performance.
Leak-Proof Functionality
If a cooler bag leaks, consumers won’t trust the brand.
Lovrix guarantees:
- Fully welded seams
- Zero-needle inner construction
- Water-tight liner
- Rip-resistant inner layer
All verified through:
- 4-hour water retention test
- Pressure leak test
- Shake test with water
Food Safety
We provide:
- BPA-free materials
- FDA-approved PEVA
- Odor-free linings
- Anti-mold treatment
- Easy-clean surfaces
No harmful chemicals. No plastic smell. No residue.
Waterproof Exterior Performance
Must withstand:
- Rain
- Condensation
- Outdoor environments
Lovrix provides materials with:
- Waterproof rating 1000–5000mm
- Anti-stain surface
- UV-resistant finish
Durability Under Weight
Cooler bags are heavy when full.
We reinforce:
- Handles
- Straps
- Bottom panel
- Zipper area
- Seams
- Sidewalls
Every critical stress point is strengthened.
Aesthetics & Branding
Cooler bags must have strong visual appeal:
Logo options:
- Rubber patch
- Silicone logo
- Embroidery (rare for coolers)
- Metal patch
- Screen print
- Heat-transfer prints
- PVC patch
- Woven label
- Custom zipper pullers
Cooler bags are lifestyle products — branding matters.
Types of Cooler Bags Lovrix Manufactures
Lovrix produce soft coolers, cooler backpacks, lunch bags, insulated tote bags, delivery bags, promotional cooler bags, EVA cooler cases, and tarpaulin coolers, all with customizable insulation and branding.
Soft Cooler Bags (High-Performance Outdoor Coolers)
Used for camping, fishing, hiking, beach, BBQ, travel.
Features:
- high-density insulation
- waterproof/tarpaulin shell
- welded leakproof TPU lining
- rubber waterproof zippers
- detachable shoulder strap
- side pockets
- bottle opener add-on
- custom sizes: 12L / 20L / 30L / 40L / 60L
Cooler Backpacks
Hands-free coolers for outdoor use.
Features:
- double-padded shoulder straps
- breathable back support
- leakproof inner liner
- food-safe materials
- ergonomic load distribution
Insulated Lunch Bags
Perfect for children, office workers, schools, meal prep brands.
Features:
- lightweight construction
- insulated PEVA lining
- custom prints
- compact sizes
- easy-clean surface
Heavy-Duty Delivery Cooler Bags
Designed for food delivery companies.
Features:
- rigid interior
- multi-layer insulation
- aluminum foil lining
- stacking-friendly structure
- thermal stability up to 60–90 min
- foldable structure (optional)
Cooler Tote Bags
Lifestyle-friendly coolers for brands.
Features:
- fashionable appearance
- insulation layer
- waterproof interior
- multiple closure options
- lightweight
Collapsible Coolers
Travel-friendly & space-saving.
Features:
- fold-flat construction
- soft sides
- portable
- cost-efficient
- ideal for supermarket promotions
EVA Molded Cooler Bags
Premium semi-hard coolers.
Features:
- molded EVA structure
- soft exterior but rigid form
- long ice retention
- stylish design
Beach Coolers
Designed for sand, sun, waves, heat.
Features:
- UV-resistant fabrics
- anti-sand materials
- large capacity
- high insulation performance
Promotional Cooler Bags
Used by:
- beverage companies
- event marketing
- brand giveaways
Economical & highly customizable.
Material Options for Cooler Bags
Cooler bags use 600D–1680D polyester, tarpaulin, TPU fabric, EPE/XPE foam insulation, aluminum foil, PEVA/TPU linings, SBS/YKK zippers, and reinforced webbing for thermal performance, durability, and leakproof functionality.
Complete Material Library (EXTENDED)
Outer Fabrics
- 600D / 900D / 1680D polyester
- Tarpaulin (marine-grade)
- TPU laminated fabric
- Ripstop nylon
- Waterproof Oxford
Insulation Materials
- EPE foam (5–10mm)
- High-density XPE insulation
- Multi-layer reflective insulation
- Aluminum foil composite
- Pearl foam
Lining Options
- PEVA food-safe lining
- TPU welded liner
- PVC waterproof liner
- Aluminum foil
Hardware
- waterproof zippers
- SBS / YKK zippers
- molded rubber pullers
- metal D-rings
- heavy-duty plastic buckles
- reinforced webbing straps
OEM/ODM Customization Options
Customization includes size, insulation, leakproof liner, outer fabrics, colorways, pockets, zippers, straps, branding, add-ons, and packaging. Cooler bags can be tailored for outdoor, food delivery, lifestyle, kids, or promotional markets.
Structure & Capacity
- 5L to 60L soft coolers
- tall or wide structure
- box-shaped delivery coolers
- backpack structure
- tote structure
- foldable structure
Insulation Customization
- 3–7 layer thermal systems
- premium XPE insulation
- double-insulated walls
- reflective foil heat barrier
Lining Choices
- PEVA
- TPU welded
- PVC
- aluminum foil
Functional Add-Ons
- bottle opener
- mesh pockets
- dry pocket
- waterproof front pocket
- MOLLE straps
- elastic rope lid
- removable shoulder strap
Branding Customization
- rubber logo patch
- printed logo
- woven label
- embroidery
- heat transfer
- reflective branding
Packaging Options
- polybag
- retail colorful box
- eco-friendly paper box
- FBA-ready packaging
Cooler Bag Manufacturing Process
The manufacturing process includes design, thermal modeling, welding, insulation assembly, sewing, leakproof testing, quality inspections, packaging, and worldwide shipping.
Step 1
Requirements & Use Case Definition
We study:
- Target temperature retention
- Usage scenario
- Bag size & volume
- Material selection
- Branding
- Target cost
- Target user (camping, lunch, beach, delivery…)
Step 2
Thermal & Structural Engineering
We design:
- Foam thickness
- Lining system
- Thermal reflectivity
- Waterproof strategy
- Leak-proof welding mapping
- Structural reinforcement
- Handle strength parameters
Step 3
Pattern Design & CAD Development
Includes:
- 2D pattern construction
- Lining geometry
- Insulation layer integration
- Reinforcement panel mapping
- Pocket placement
Step 4
Prototype Development
Prototype testing includes:
- Ice retention tests
- Waterproofing tests
- Leak-proof tests
- Structural compression tests
- Drop tests
- Handle tensile tests
- Zipper cycling
- Odor test
We revise until performance is perfect.
Step 5
Mass Production
Process:
- Cutting
- Welding (PEVA/TPU)
- Sewing
- Branding application
- Reinforcement installation
- Final pressing
- QC checkpoints
Step 6
Full Quality Control
We test:
- Heat-retention performance
- Waterproof capability
- Seam welding quality
- Lining durability
- Handle tension strength
- Final aesthetic inspection
Step 7
Packaging & Shipping
Options:
- Polybags
- Custom boxes
- Insert cards
- Hangtags
- FBA packaging
Shipping:
- Air express
- Sea freight
- Air cargo
Why Global Brands Choose Lovrix
As a global manufacturer, Lovrix delivers OEM/ODM, custom, and personalized cooler bag solutions with bespoke details, wholesale programs, and reliable bulk production for brands seeking performance and scale.
- Advanced thermal engineering
- Leak-proof, waterproof, food-safe construction
- OEM/ODM excellence
- Premium materials
- Fast prototyping
- Strong QC system
- Flexible MOQs
- International shipping capability
- Modern branding & fashion-driven design
- Long-term manufacturing partner
Lovrix cooler bags deliver real performance and retail-ready quality.
Quality & Certifications
Certified by ISO9001, OEKO-TEX100, GRS, and Higg Index, Lovrix ensures every bag product meets global compliance standards. We implement strict QC at every stage, from yarn to final packaging.
FAQ — Cooler Bag Manufacturer
1. How long can your cooler bags keep items cold?
Between 4–18 hours, depending on insulation level.
2. Are your cooler bags leak-proof?
Yes — fully welded PEVA or TPU lining options ensure 100% leak resistance.
3. Do you use food-safe materials?
Yes — all linings are FDA-grade, BPA-free, odor-free.
4. What is your MOQ?
Usually 300–500 pcs, depending on complexity.
5. Can you produce waterproof cooler bags?
Yes — TPU, tarpaulin, waterproof PVC, and waterproof zippers available.
6. Can you create backpack cooler bags?
Yes — ergonomic sports backpacks with insulation.
7. Can you make custom printed linings?
Yes — logo pattern / color / artwork can be printed.
8. How long does sample development take?
10–15 days depending on insulation complexity.
9. Do you support Amazon FBA packaging?
Yes — complete preparation available.
10. What do you need to begin development?
Just send:
- Reference image or drawing
- Size
- Insulation requirement
- Material preference
- Logo method
- Quantity
We turn your idea into a full commercial product.
Trusted By 1000+ Brands And Innovative Startups
Build High-Performance Cooler Bags with Lovrix
Whether you want to launch:
- A picnic bag line
- A beach cooler collection
- A premium soft cooler
- A lunch cooler series
- A grocery delivery cooler
- A meal prep cooler system
- An outdoor hiking cooler bag
- A brand collaboration cooler
Lovrix can design, engineer, and manufacture market-leading insulated cooler bags that elevate your brand.
Send us your idea or reference now
We’ll create a complete OEM/ODM development plan.
If you have any questions or need a quote, please leave us a message. Our experts will respond within 12 hours to assist you in selecting the ideal product solutions tailored to your needs.
- (+86) 13823134897
- info@lovrix.com
