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Cooler bag development begins with the contents

A lunch container, picnic kit and delivery programme need different shapes. We begin with the contents and develop the opening, lining and carrying details around them.

The short answer

Container dimensions give cooler-bag development a starting point. The shell, insulation, liner and opening are considered together for the selected construction.

Cooler bag development begins with the contents — Feima Bag, Jinhua China

A useful shape for your kit

A cube-like lunch bag, upright tote and wide picnic style organise the inside differently. Container dimensions give the pattern room a reference for the body and opening. The cooler and lunch bag range includes several formats to begin your collection.

Treat the lining as part of the version

The shell, insulation layer and liner are specified together for the chosen bag. We discuss the interior with your intended containers, including how they fit through the opening and sit inside the bag. The selected construction and dimensions are brought into the sample so you can see the complete arrangement.

Documents for the selected lining

Your contact checks the available material reports against the selected lining and its intended use. The original files on the report page identify the submitted samples and recorded results. The relevant file is considered alongside the proposed material, containers and bag version.

A lunch bag can be part of a series

Colour, handles and labels can follow a backpack or another accessory. Our designer shows the pieces together before sampling. One representative coordinates their individual specifications, sample decisions and packaging, then prepares the shipment calendar with you.

Questions we get on this

Questions about cooler bag development

Can the shape follow our container kit?

Yes. Container dimensions help the pattern room develop the bag’s body, opening and interior arrangement.

How are material reports considered for the lining?

Your contact checks the available reports against the selected lining and intended use. Each original file describes its submitted sample and recorded results.

In this article

Cooler bag shape and lining at a glance

  • A useful shape for your kitA cube-like lunch bag, upright tote and wide picnic style organise the inside differently. Container dimensions give the pattern…
  • Treat the lining as part of the versionThe shell, insulation layer and liner are specified together for the chosen bag. We discuss the interior with your intended…
  • Documents for the selected liningYour contact checks the available material reports against the selected lining and its intended use. The original files on the…
  • A lunch bag can be part of a seriesColour, handles and labels can follow a backpack or another accessory. Our designer shows the pieces together before sampling. One…

Go deeper

Samples, starting quantities and materials

Quality and documents

A clear reference for your order.

The approved sample and agreed specifications guide the build. Your salesperson brings the material, logo and packing details together with the production team.

See how the factory works →

Factory systems and material reports

ISO 9001 and ISO 14001 are held at factory level. Available product and material reports describe their tested samples; we help you review the relevant files for your project.

View certificates and original reports →

Keep reading

Send a drawing, a photo, or just a sentence.

Share the model or idea, quantity and destination. We will help with the material, branding and sample options, then prepare the production plan around your order.

Feima has made bags in Jinhua since 1995. A salesperson prepares your project details, and the sales manager oversees progress.