Upright Insulated Lunch Bag Overview
The Upright Insulated Lunch Bag HZ-CB303 is an upright insulated lunch bag with a front pocket and shoulder strap, slim enough for a work bag or locker.
Base style: 23 × 9.5 × 27.5 cm · 6 cans · 300D black or 300D heathered grey
Hongzhao makes this style to order in our own factory in Longgang, Shenzhen, from 50 pcs per style and color.
Lunch bags are sized around what goes inside. Send your box or can size and we set the inner dimensions to match. See more lunch bags & lunch box carriers in our Cooler Bags range.
Key Features
- Upright shape for lunch boxes and bottles
- Front zip pocket
- Foam insulation with foil lining
- Detachable shoulder strap
Typical Uses
- Office and school lunches
- Commuting
- Retail lunch bag lines
Upright Insulated Lunch Bag Specifications
| Style No. | HZ-CB303 |
| Product type | Lunch Bags & Lunch Box Carriers |
| Silhouette | Slim upright rectangle |
| Size, W × D × H (cm) | 23 × 9.5 × 27.5 |
| Size (inches) | 9.1 × 3.7 × 10.8 |
| Capacity | 6 cans |
| Weight | 300 g (0.7 lb) |
| Outer fabric | 300D black or 300D heathered grey |
| Lining | Foil lining |
| Insulation | Pearl foam, 4 mm |
| Shoulder strap | Detachable, 55 cm |
These are the specifications of this base style. For a custom order, the size, materials and weight follow your drawing, sample and requirements, and are confirmed with you before sampling.
Customization Options for HZ-CB303
| Item | Options |
|---|---|
| Size | Base 23 × 9.5 × 27.5 cm; changed to your drawing or sample |
| Outer fabric | Base 300D black or 300D heathered grey; or 300D–1680D polyester or Oxford outer, PE / EPE pearl foam insulation, foil or PEVA lining |
| Lining | Base Foil lining; or your specification |
| Insulation | Base: Pearl foam, 4 mm; can be changed |
| Logo | Screen printing, digital printing, HF embossing, embroidery, rubber patch or woven label |
See our OEM process, ODM service, private label bags and bag materials.
Lunch Bags & Lunch Box Carriers: Common Concerns
| Concern | What we do |
|---|---|
| The lining leaks | Foil lining is standard. Heat-sealed PEVA or TPU liners are available, and we check the sample with water when you ask |
| How long does it stay cold? | It depends on foam, lining and ice. We do not promise a time before testing; we can test your approved sample |
| The bag does not fit the food boxes | Tell us the box or can size and we confirm the inner size before sampling |
Quality Checks for HZ-CB303
- Foam thickness and lining against the approved sample
- Lining seams and leak check with water where required
- Zipper function around the lid
- Strap and handle attachment
See how we check quality, our certificates and a factory tour.
HZ-CB303 FAQ
What size is the Upright Insulated Lunch Bag HZ-CB303?
The base style is 23 × 9.5 × 27.5 cm (9.1 × 3.7 × 10.8 in), with 6 cans. We change the size to your drawing or sample.
What is HZ-CB303 made of?
The outer is 300D black or 300D heathered grey and the lining is foil lining. Other fabrics are confirmed on your sample.
Can you change the insulation thickness?
Yes. Foam thickness and lining type are confirmed on the sample. We test the approved sample before bulk so you know how it performs; we do not promise a cooling time before testing.
Can the lining be leakproof?
Yes. Leakproof liners are made with welded or heat-sealed lining. We check the sample with water when you require it.
What is the MOQ for HZ-CB303?
50 pcs per style and color. Requests under 50 pcs are handled as sample orders.
Can you make this upright Insulated Lunch Bag from my photo or sketch?
Yes. Send what you have. We list the sizes still needed and send a marked-up drawing for your approval before sampling.
More answers on our FAQ page.
Related styles
HZ-CB304Slim Insulated Lunch Box Carrier
HZ-CB305Wide-Mouth Insulated Lunch Tote – Grey
HZ-CB306Wide-Open Lunch Tote with Front Zip Pocket – Grey
HZ-CB307Wide-Mouth Lunch Tote with Leather Handles – GreyAll product categories









