What thermal retention specifications do your cooler bags achieve?

Our insulated bags maintain 4-6 hour thermal retention through 5mm EPE foam (28kg/m³ density) combined with aluminum foil reflective layers. ASTM C177 testing validates temperatures below 8°C for 4 hours and below 12°C for 6 hours at 25°C ambient with 1kg ice load. PEVA-lined models achieve seamless leak-proof construction via RF welding rather than stitched seams.

Are your cooler bag materials food-safe for lunch and meal delivery applications?

Yes. Our PEVA lining is FDA 21 CFR 177.1350 compliant for direct food contact. The 300D polyester and bio-washed canvas exteriors meet hygiene wipe-down protocols required by school lunch programs and food delivery services. We provide material certification documentation for compliance verification.

What is the minimum order quantity for custom branded cooler bags?

Standard MOQ is 500 pieces per colorway across all cooler bag categories: waterproof Oxford circle coolers, kids lunch totes, canvas lunch bags, and thermal backpacks. This 500-piece threshold applies to both standard and RPET sustainable material options. For 1,000+ unit orders, we offer tiered pricing and dedicated line scheduling.

Can you produce cooler bags with sustainable RPET materials?

Yes. Lines 5-6 at our Dongguan facility are GRS-certified for RPET production. We stock 50+ recycled polyester fabric variants including 600D RPET Oxford and 300D RPET ripstop—eliminating the 45-60 day lead times typical of made-to-order sustainable materials. This enables 500MOQ eco-friendly cooler bag production with the same thermal performance as virgin materials.

What branding methods work best for cooler bag customization?

We recommend silk-screen printing with water-resistant inks for cost-effective branding (entry-level), heat-transfer for complex multi-color logos (mid-tier), or woven labels for premium positioning. For kid-focused lunch bags, we offer food-safe silicone patches. All methods accommodate 500MOQ minimums and maintain durability through wash cycles.

DONGGUAN THERMAL BAG PRODUCTION

500MOQ Insulated Cooler Bag Manufacturing

4-6 hour retention · PEVA-lined · FDA food-grade · BSCI certified since 2013

Quick Inquiry

Your Name

Email Address

Requirements

Verification Code

ABCD

4-6 Hour Retention Tested

PEVA Lined Leak-Proof

FDA Food-Grade Certified

BEST SELLER

OxFlex Waterproof Circle Cooler Bag

Retention:4-6 Hours (ASTM C177)

MOQ:500pcs

Shell:600D Oxford Waterproof

SCHOOL LUNCH

Kids Insulated Lunch Bag

Material:300D Polyester / RPET

MOQ:500 pcs

Safety:FDA Food-Grade Lining

Eco-friendly bio-washed canvas lunch bag with heavy-duty thermal lining

SUSTAINABLE

Eco Canvas Insulated Lunch Bag

Material:Bio-Washed Canvas

MOQ:500 pcs

Cert:GRS-Certified Available

OUTDOOR

Leopard Print Thermal Backpack

Style:Fashion-Forward Thermal

MOQ:500 pcs

Use:Picnics, Festivals, Travel