What Should You Specify for a Custom Insulated Cooler Bag Prototype?

To develop a prototype insulated cooler bag, provide the bottle dimensions, pouch size, base gusset, insulation materials, closure, grip design, print requirements, and expected cooling use. A complete brief should also include the preferred construction, artwork, sample quantity, and review steps so the design can be made and assessed as a physical sample.

Start with the Bottle and Bag Dimensions

Identify the bottle format the pouch must hold: 187 ml split, 375 ml half, 750 ml Bordeaux or Burgundy, or 1.5 L magnum. Available face sizes range from 10 x 26 cm to 18 x 43 cm. If these options do not fit, provide the bottle measurements for a custom size. The base gusset is typically 4-6 cm and can be tailored to the bottle base.

Choose the Construction and Insulation

The standard design is a flat pouch with a bottom gusset and no side gusset. Its material structure combines an aluminium foil laminate outer face, 2-5 mm closed-cell EPE foam, and a food-grade PE sealant contact layer. An air-bubble insulation option can also be requested. For a chilled bottle kept at room temperature, the stated cooling performance is 4-6 hours; include your intended use when discussing the insulation specification.

Set the Closure, Grip, and Printed Finish

The usual closure is a press-to-close rib seal positioned below an 8-10 cm welded, double-thickness head band. A slider or heat-sealed finish is available by request. The standard carrying feature is a die-cut oval grip with radiused ends, registered to the print. Include any changes to the handle shape or pouch structure in the brief and drawing.

Printing can cover both the front and back panels in full colour, use specified Pantone shades, or leave the foil silver unprinted. Supply the artwork and indicate the desired coverage, colour matches, and any custom structural details. Ecopack's in-house tooling and design process provides a 3D structural drawing for approval before printing plates are made.

Review the Sample and Production Schedule

Approve the design using a physical bag, checking its fit, appearance, dimensions, print registration, seal strength, and lamination bond. Pantone-matched samples generally take 3 to 5 working days. After artwork approval, production usually requires 15 to 25 days. Incoming materials, production stages, and pre-shipment goods are inspected under the ISO 9001:2015 quality system, with AQL sampling for finished products.

Specification at a Glance

Typical Uses and Ordering Notes

This pouch is designed for chilled wine presentation and can support parcel fulfilment for temperature-sensitive products. Ecopack also offers other insulated mailer constructions for e-commerce, including aluminium foil self-seal, reclosable zipper, bubble-lined, and kraft-paper outer options. The wine bottle pouch described here uses a press-to-close rib seal as its standard closure.

Custom orders typically begin at 5,000 to 10,000 pieces, depending on the dimensions and construction. Stock sizes can ship from available inventory. Ecopack reports that a US distributor uses its insulated mailers for cold shipping at an annual volume of 10 million pieces.

Frequently Asked Questions

What bottle details are needed?

Give the capacity and bottle type, such as a 187 ml split, 375 ml half, 750 ml Bordeaux or Burgundy, or 1.5 L magnum. For a non-standard fit, provide the bottle dimensions.

Which material choices should the brief cover?

Specify the aluminium foil laminate, closed-cell EPE foam thickness, food-grade PE sealant, and whether you want the air-bubble alternative. Confirm the base gusset against the bottle base as well.

How is a new design approved?

Submit the artwork, Pantone references, panel coverage, grip shape, and preferred closure. A 3D structural drawing is prepared for review before printing plates are cut, and the design is then evaluated using a physical bag sample.

About the Manufacturer

Huizhou Ecopack Packaging Products Co., Ltd. is a flexible packaging manufacturer based in Guangdong, China. Founded in 2011, the company produces custom composite pouches and bags for insulated packaging, coffee, pet food, spout, kraft, compostable, and ESD applications. Its factory covers more than 10,000 sqm, with tooling and structural design carried out in-house. The R&D process includes more than ten documented bag structures and a 3D structural drawing for customer approval before printing plates are cut.

The company holds ISO 9001:2015 Quality Management System certification and FSC Chain of Custody certification. For technical details or project support, contact manager@ecoppack.com.