Description
Technical Parameters

Built for serious outdoor cooling with hands-free comfort, the FENGLINWAN Double Shoulder Insulated Bag combines a spacious 25L capacity, durable TPU construction, NBR insulation, and ergonomic backpack-style carrying in one rugged design. With room for approximately 36 cans, a large top opening, waterproof zipper, padded shoulder straps, and functional exterior webbing, this insulated cooler backpack is ideal for camping, picnics, fishing, beach trips, road travel, and outdoor events. Whether your customers need chilled drinks, packed meals, or reliable outdoor food storage, this backpack delivers practical performance with a premium outdoor look.
Contact FENGLINWAN today for custom OEM/ODM cooler backpack solutions.
Product Specifications
|
Specification |
Details |
|
Product Name |
Double Shoulder Insulated Bag |
|
Item No. |
FLW-018 |
|
Size |
37.5 × 22 × 48 cm |
|
Capacity |
25L |
|
Approx. Can Capacity |
Up to 36 cans |
|
Main Material |
TPU |
|
Insulation |
NBR insulation cotton |
|
Color |
Black / Gray |
|
Closure |
High-strength waterproof zipper |
|
Carrying Style |
Padded shoulder straps + top carry handle |
Product Features

25L Spacious Capacity
Designed for group outings and longer outdoor trips, this 25L cooler backpack holds approximately 36 cans while leaving useful space for ice packs, snacks, or packed food. Its structured 3D shape helps maximize interior storage efficiency.
Long-Lasting Insulation
The integrated NBR insulation layer helps maintain internal temperature for extended periods. Product data indicates heat retention for up to 24 hours, while ice can remain not fully melted for up to 72 hours, depending on environmental and usage conditions.
Waterproof TPU Construction
Made from high-strength TPU, the exterior offers strong waterproofing, abrasion resistance, and easy-clean performance. Combined with a waterproof zipper, the bag is well suited to wet grass, splashes, beach environments, and demanding outdoor use.
Comfortable Backpack Carry
Wide ergonomic padded shoulder straps help distribute weight more comfortably when the bag is fully loaded. A breathable back panel further improves carrying comfort during walking, hiking, fishing, or event use.
Large Top Opening
The wide top-access design makes it easier to load cans, bottles, meals, ice packs, and other supplies. Users can quickly reach the contents without struggling with a narrow opening.
Functional Outdoor Details
Exterior webbing loops provide attachment points for accessories such as carabiners, bottle openers, or small tools. The top carry handle adds a second carrying option for short-distance transport.
Product Applications

- Camping: Carry chilled beverages, meat, snacks, and prepared meals to campsites.
- Picnics: A practical insulated backpack for family outings and group gatherings.
- Fishing: Keep drinks and food organized while leaving both hands free for gear.
- Beach Trips: TPU construction helps handle sand, splashes, and humid environments.
- Road Trips: Use it as a portable cooler during travel, then carry it comfortably at the destination.
- Outdoor Events: Suitable for sports events, barbecues, festivals, tailgating, and team activities.
Customization Options & Services
As an experienced insulated bag manufacturer, FENGLINWAN supports OEM and ODM projects for outdoor brands, distributors, wholesalers, and private-label customers.
- Logo Customization: Add your brand identity to the product and packaging.
- Color Customization: Develop colors according to project requirements and material availability.
- Material Selection: TPU and other suitable materials can be evaluated based on product positioning and performance needs.
- Structure & Function Development: Modify dimensions, storage layout, webbing, carrying systems, and functional details.
- Packaging Customization: Hang tags, stickers, poly bags, cartons, and other packaging options can be prepared according to customer requirements.
- OEM/ODM Development: Support from concept and material selection through pattern development, sampling, testing, production, QC, and export delivery.
- Quality Control: Production can include IQC, IPQC, FQC, and OQC procedures, with waterproof-related testing applied where required.
Looking for a custom cooler backpack for your brand? Send us your design, sample, or product requirements to start your OEM/ODM project.

FAQ
Q: What is a double shoulder insulated bag used for?
A: It is designed to carry food, drinks, ice packs, and other temperature-sensitive items while allowing hands-free backpack carrying. Common uses include camping, fishing, picnics, beach trips, and road travel.
Q: How many cans can this 25L cooler backpack hold?
A: The FLW-018 has a 25L capacity and is designed to hold approximately 36 cans, depending on can size and how much ice or food is packed inside.
Q: How long does the insulated backpack keep items cold?
A: According to the available product data, ice can remain not fully melted for up to 72 hours under suitable conditions. Actual performance varies with ambient temperature, packing method, opening frequency, and ice quantity.
Q: Is the Double Shoulder Insulated Bag waterproof?
A: The bag uses a TPU exterior and a waterproof zipper to provide strong protection against rain, splashes, and wet outdoor conditions.
Q: Can I add my own logo?
A: Yes. FENGLINWAN supports private-label and OEM logo customization for brand customers.
Q: Can the size, color, or structure be customized?
A: Yes. Size, color, materials, webbing, carrying structure, and other functional details can be evaluated according to your project requirements.
Q: Do you support OEM and ODM orders?
A: Yes. FENGLINWAN supports both OEM production based on customer drawings or samples and ODM development based on functional and market requirements.
Q: What is the MOQ?
A: MOQ depends on the materials, customization level, packaging requirements, and final product specifications. It is confirmed during quotation.
Q: Can I order a sample before bulk production?
A: Yes. Sample development is available so customers can evaluate materials, workmanship, structure, and functional details before mass production.
Q: Can you provide custom packaging and export support?
A: Yes. Custom packaging can be arranged, and FENGLINWAN supports international delivery by courier, air freight, or sea freight together with standard export documentation.
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