Isothermal envelope 400x300

📦 Insulated envelope 400×300 mm - effective thermal protection for small and medium products!

Insulated envelope 400×300 mm is the perfect solution for companies that ship temperature-sensitive products, but in smaller dimensions. Compact form, solid construction, and convenient closure make it suitable for e-commerce, gastronomy, and pharmacy. The layer of metallized foil protects against heat from the outside, and bubble wrap acts as an insulating and cushioning barrier. The 400×300 mm format allows for packing individual items or sets of small volume.

🌡️ What is a cold supply chain?

Cold supply chain is the process of maintaining a constant, low temperature from the moment of packaging until delivery to the recipient. Thanks to the 400×300 mm thermal envelope, it is possible to maintain the freshness and properties of products even during standard courier delivery - without the need for refrigerators.

🌟 Design details and advantages of the 400×300 mm thermal envelope

• Metallic coating: reflects thermal radiation and protects the interior from heating up.
• Thick bubble foil: thermally insulates and protects against mechanical damage.
• Welded edges: increase the durability and tightness of the envelope.
• Self-adhesive closure: quick and convenient securing of the shipment without tape.
• 📐 Format 400×300 mm: compact, yet spacious enough for basic refrigerated products.
• 🪶 Low weight: reduces transport costs and facilitates logistics.

🚛 What can be transported in the 400×300 mm thermal envelope?

• 🥗 Fine food and ready meals: e.g. snacks, lunch portions, salads.
• ❄️ Frozen and chilled products: small portions of vegetables, ice cream, cheeses.
• 💊 Pharmaceuticals: e.g. medicines, vaccines and other substances requiring refrigeration.
• 🍫 Sweets: e.g. chocolates and bars prone to melting.
• 🧴 Cosmetics: e.g. creams, serums, preservative-free cosmetics.

💼 Who is the 400×300 mm isothermal envelope for?

• 🥗 For catering and small gastronomy: ensures freshness and aesthetics when delivering meals.
• 🏥 For pharmacies and pharmaceutical companies: reliable thermal protection of medicines and samples.
• 🛒 For e-commerce: ideal for shipping refrigerated products in small packages.
• 💄 For cosmetic brands: safety in transporting natural and handmade cosmetics.

📦 Boxes suitable for the isothermal envelope

For even better package protection, we recommend using one of the following boxes:

• 📦 S21 SENDBOX 255×180×160 - a compact, shaped box with an automatic bottom, perfect for light, small shipments with an isothermal envelope.
• 📦🛡️ Flap box 200×150×100 - a classic protective box made of solid cardboard, perfect for protecting smaller products in transport.
• 📐 Custom dimension boxes - design your own box precisely tailored to the specifics of your goods.

💬 Do you have questions or need an individual quote?

Use the PRO form and get in touch with our team. We will help you choose the solutions best suited to your business!

Isothermal envelope 400×300 mm - choose functionality, simplicity and effective thermal insulation in a compact format!