**EB-CB111:** Insulated Lunch Bags # Thermal Box Lunch Bag - Large-Capacity Waterproof Backpack (Polyester) This large-capacity thermal box lunch bag is built as a waterproof backpack for refrigerated and insulated delivery use. Manufactured by Eggroll Bags (Eggroll International Trade (Shanghai) Co., Ltd.) for retailers, brand owners and promotional distributors worldwide. - **Model**: EB-CB111 - **Product type**: Thermal box lunch bag / insulated delivery backpack - **Material**: Polyester - **Dimensions**: Confirmed on sample - **Carton / packing**: On request - **MOQ**: 500 pcs per colour - **Lead time**: Sample 7–12 days, bulk 25–35 days [Ask on WhatsApp](https://wa.me/8615968639521?text=Quotation%20request%3A%20EB-CB111%20%E2%80%94%20https%3A%2F%2Fwww.eggrollbags.com%2Fproducts%2Fthermal-box-lunch-bag-large-capacity-waterproof-backpack%2F) **Quick answer:** The EB-CB111 is built as a waterproof backpack for refrigerated and insulated delivery use. Minimum order is 500 pieces per colour, counter samples take 7–12 days and bulk production 25–35 days, quoted FOB Shanghai or Ningbo. ## Overview This large-capacity thermal box lunch bag is built as a waterproof backpack for refrigerated and insulated delivery use. Made from durable polyester, it is designed to carry meals and keep them at temperature during transport. Its backpack format makes it a practical choice for delivery, catering, and outdoor use where hands-free carrying and generous capacity matter. ### Why buyers pick it - Large-capacity waterproof backpack design - Durable polyester construction - Insulated for refrigerated delivery use - Custom service available ### Features - Waterproof exterior for delivery in varied conditions - Insulated interior for temperature-sensitive food - Hands-free backpack carry ### Typical use - Food delivery and courier services - Catering and event transport - Outdoor and travel use requiring large capacity ## Construction Close-ups of the parts buyers ask about — liner and stitching, hardware, straps, compartments and the branding area. Each one is written into the quotation and confirmed on the counter sample before bulk. ## Specifications EB-CB111 specifications | Product type | Thermal box lunch bag / insulated delivery backpack | | Material | Polyester | | Special feature | Large-capacity, waterproof, refrigerated delivery insulation | | Carry | Backpack | | Color | Brown | | Place of origin | Xiamen | | Customization | Logo, color, size, material | | Model code | EB-CB111 | | Minimum order | 500 pcs per colour (catalogue model) | | Sample | 7–12 working days, fee credited against the first bulk order | | Trade terms | EXW / FOB Shanghai or Ningbo / CIF / DDP | | Payment | 30% T/T deposit, 70% against copy of B/L | | Inspection | ISO 2859-1 GL II · AQL 2.5 major / 4.0 minor | Specifications come from the supplied product data. Final dimensions, materials, colours and packaging follow the confirmed sample and order confirmation. Catalogue images are studio renders showing construction and colourway options. ## Customisation and ordering Logo printing/embroidery, color, size, material, lining, straps, zippers, and packaging can be customized to order. Please provide the required quantity, color, size, material, logo/printing details, and packaging requirements for an accurate quote. Sample time is typically 3-5 working days, with delivery in 30-60 days depending on quantity. Shipment is available by sea, air, and express (DHL/FedEx/EMS, etc.). Send Pantone TCX or TPG references for fabric and Pantone C for print. Colour is approved on a lab dip before bulk dyeing. ## Questions about the EB-CB111 What is the minimum order quantity for the EB-CB111? 500 pieces per colour as a catalogue model in a stock colourway. A new custom pattern or a custom-dyed Pantone starts at 1,000 pieces per colour, because the fabric mill sets a minimum dye lot. Can the Thermal Box Lunch Bag - Large-Capacity Waterproof Backpack (Polyester) be customised? Logo printing/embroidery, color, size, material, lining, straps, zippers, and packaging can be customized to order. Send Pantone TCX or TPG references for fabric and Pantone C for print; colour is approved on a lab dip before bulk dyeing. How long does an order of the EB-CB111 take? A counter sample with your artwork takes 7–12 working days. Bulk production is 25–35 days after sample approval and deposit. Add sea transit of roughly 28–40 days to North Europe or the US East Coast. ## Price the EB-CB111 We reply with a written FOB offer that names the fabric, liner, foam thickness, hardware and carton specification — not just a unit price. **Thermal Box Lunch Bag - Large-Capacity Waterproof Backpack (Polyester):** EB-CB111 · Confirmed on sample ## More insulated lunch bags [View all](https://www.eggrollbags.com/products/cooler-bags/lunch-bag/) EB-CB109 ### Teal Insulated Lunch Bag with Snowflake Embroidery Design (600D Polyester, 22x12x26cm) 22 x 12 x 26 cm · 600D polyester EB-CB110 ### Teenagers Lunch Box Bag for School Kids (600D Polyester + PEVA, 32x12x35cm) 32 x 12 x 35 cm · 600D polyester + PEVA EB-CB112 ### Thermal Cooler Lunch Bag with Custom Logo for Outdoor (Polyester, Leakproof) Confirmed on sample · Polyester EB-CB113 ### Thermal Lunch Tote for Work & School (600D Polyester + PEVA, 35x17x35cm) 35 x 17 x 35 cm · 600D polyester + PEVA (durable fabric with thermal insulation) ### Buying guides for this model - [Lunch bagsHow to Keep Lunch Hot (or Cold) Until Midday: A Lunch Bag Guide](https://www.eggrollbags.com/blog/how-to-keep-lunch-cold-and-hot/) - [Lunch bagsLunch Bag, Lunch Box or Bento: Which Should Your Range Include?](https://www.eggrollbags.com/blog/lunch-bag-vs-lunch-box-vs-bento/) - [Cooler bagsHow Long Does a Cooler Bag Keep Ice? Hold Times by Construction](https://www.eggrollbags.com/blog/how-long-does-a-cooler-bag-keep-ice/) [Previous: EB-CB110](https://www.eggrollbags.com/products/teenagers-lunch-box-bag-for-school-kids/)[Next: EB-CB112](https://www.eggrollbags.com/products/thermal-cooler-lunch-bag-custom-logo-for-outdoor/)