Leak-proof lunch and cooler bags
Lunch and cooler bags built around a leak-resistant liner — heat-welded seams, wipe-clean interiors and a water test on sampled units before every shipment.
29 modelsMOQ 500 pcs per colourSample 7–12 daysBulk 25–35 days
Models
No model matches every filter
Remove a filter, or describe what you need — most programmes start from the nearest model and change it.
Buying guide
What actually makes a lunch bag leak-proof
The liner and its seams. A stitched liner leaks through the needle holes; a heat-welded (high-frequency sealed) PEVA or TPU liner does not. Ask for the seam method in the quotation, not just the word 'leak-proof'.
- Liner: PEVA for price, TPU for commercial washing and durability.
- Test: 1 litre of water in the compartment for 10 minutes, no wicking through the outer.
- Cleaning: a removable liner or wipe-clean surface is what users notice.
Read leak-proof and washable lunch bags and our quality and inspection page.
Frequently asked
Are leak-proof lunch bags really waterproof?
A welded liner holds liquid inside the compartment, but the zip is not watertight. Leak-proof means melted ice or a spilled drink stays in the liner rather than soaking the outer fabric.
PEVA or TPU — which liner is better?
PEVA is the cost-effective PVC-free standard for consumer lunch bags. TPU is tougher, tolerates repeated washing and is preferred for commercial delivery bags; it costs more.
How do you check liners for leaks?
Sampled units get 1 litre of water in the insulated compartment for 10 minutes during pre-shipment inspection. Any wicking through to the outer fabric counts as a major defect.
Not sure which construction fits?
Send the end use, the landed target and the quantity. We come back with two or three candidate models and what each one changes — fabric, liner, foam and carton spelled out.