Custom Insulated Drawstring Lunch Bags
- Office and commuting programs for employees carrying packed lunches daily.
- Student bento and snack bags sold through school and campus retail.
- Meal-prep and nutrition subscription brands needing a lightweight branded carrier.
- Gym and yoga studio merch where a small insulated bag fits a post-workout snack.
- Drawstring Wide Mouth: The cord closure pulls the bag fully open for easy loading of a lunch box, fruit and a bottle, then cinches tight.
- Lightweight Nylon Shell: Tear-resistant nylon keeps the empty bag light enough to fold into a backpack when not in use.
- Thermal Foil Lining: The reflective lining moderates temperature for packed lunches through a standard work or school morning.
- Reinforced Carry Seam: The top handle is bar-tacked into a reinforced mouth seam, rated for daily loaded carry.
🔬 Merris Factory Thermal Retention Test Protocol
| Test Condition | Initial Temp | Temp at 4 Hours | Temp at 8 Hours |
|---|---|---|---|
| 25°C Ambient, 8mm EPE Foam + PEVA | 2.0°C (Ice Pack) | 5.8°C | 9.4°C (< 10°C Safety Threshold) |
* Tested according to Merris Internal QA Protocol #TP-2026-COOLER. Results validated per batch.
Insulated Drawstring Lunch Bag Production Overview
How our factory sews, foils and finishes lightweight drawstring lunch bags, including thermal lining assembly and handle reinforcement.
Factory Capabilities: Nylon Cutting & Sewing | Foil Lining Assembly | Handle Stress Testing | QA Inspection
Product FAQ
Technical details for procurement teams
Direct Answer: The aluminum-foil lining moderates temperature for about 3-4 hours under normal room conditions, covering a morning commute to lunch break. It is a passive insulator, not a heated or actively cooled box.
- Core: aluminum-foil thermal lining
- Retention: 3-4 hours passive
- Type: passive insulator
- Dimensions: 35 x 30 cm flat (custom)
Direct Answer: Yes. We print on the front panel and can attach woven labels or printed tags, and small hang tags with brand messaging are supported.
- Printing: front panel print
- Labels: woven labels, printed tags, hang tags
- MOQ: 500 pcs
Direct Answer: The current line includes cream, olive and tan, with custom Pantone dyeing available within the 500-piece MOQ and colors mixable in one order.
- Stock Colors: cream, olive, tan
- Custom Color: Pantone dyeing within MOQ
- MOQ: 500 pcs
- Mix Colors: within one order
Direct Answer: The handle seam is bar-tacked into a reinforced mouth band, comfortably carrying a standard lunch box, fruit and a 500ml bottle; heavier loads are fine with the cord fully cinched.
- Handle: webbing top handle, bar-tacked mouth band
- Typical Load: lunch box + fruit + 500ml bottle
- Closure: drawstring with webbing pull
Direct Answer: Samples take 7-14 days, and mass production runs 25-30 days after sign-off, shipped FOB Dongguan or Shenzhen.
- Sample Lead Time: 7-14 days
- Production Output: 25-30 days after sign-off
- Logistics Hub: FOB Dongguan / Shenzhen
Request Your Thermal Bag Quote
Receive material samples, thermal test data, and pricing within 8 hours.
FOB reference price is shown for indexing purposes only; final unit price is confirmed on the order sheet after specification sign-off.


