Meet the Backpack Cooler — where practicality meets performance. More than just a cooler, it’s a smart, portable solution designed to keep your food and drinks fresh across a variety of everyday situations. With its large capacity and powerful thermal insulation, this backpack is built to handle everything from weekend picnics in the great outdoors to fast-paced food deliveries on the go. Crafted for versatility, the Backpack Cooler is perfect for outdoor enthusiasts who love to pack meals for a day under the sun, bakery owners or dessert makers looking to safely transport delicate cakes and sweets, and delivery riders who need reliable temperature control for meal shipments. Its high-density insulation keeps cold air locked in and warm air out for extended periods, ensuring freshness no matter the distance or destination. Lightweight, durable, and easy to carry, the Backpack Cooler also features convenient storage pockets and a comfortable strap system, making it ideal for hands-free movement. Whether you're heading to the park, delivering desserts, or packing lunch for a hike, this cooler adapts to your lifestyle — one bag, multiple uses, endless possibilities.
Pinghu Liangjie suitcase & bag Co., Ltd. was established in 1999 and is located in the beautiful Xindai Town of Pinghu City. It has a factory area of over 9000 square meters and is located at the junction of Zhejiang and Shanghai, with superior transportation and a geographical location.
After more than 20 years of hard work, Liangjie has now become a skilled bag production factory and trading company. We have nearly 110 employees and a long-term designated outsourcing processing factory, producing over 3 million bags of various types annually. As China Backpack Cooler Bags Manufacturers and Backpack Cooler Bag Factory, our company mainly produces cooler bags, as well as various soft bags such as backpacks, travel bags, computer bags, carrying bags, makeup bags, pen bags, etc. Our products are exported to countries such as Japan, Europe, and the United States, while also developing emerging markets and domestic markets.
We have now established a development department that focuses on applying new materials to bags and creating new products. We constantly innovate in materials, styles, and workmanship to meet market demands. At the same time, we can also produce samples and manuscripts to meet the needs of different customers.
We offer Custom Soft Cooler Backpacks, our company has obtained ISO quality system certification, Japan Aeon, Sedex, and military certification. We always adhere to the business philosophy of striving for survival with quality, putting customers first, and pursuing excellence with Liangjie quality. Our goal is to continuously become an innovative enterprise with independent brands through our own efforts.
Company Established
Number of Employees
Various Types of Bags






Understanding the Importance of Leak-Proof Water Bottle Bags Water bottle bags are designed to make carrying liquids convenient and safe during outdoor activities, commuting, gym sessions, and travel. One of the most critical aspects of their performance is leak-proof capability....
View MoreWhy Shockproof Performance Matters in a Laptop Sleeve Case Modern laptops are lighter, thinner, and more portable than ever, but their compact internal structures also make them more vulnerable to accidental impact. A laptop sleeve case plays a critical role in everyday device pr...
View MorePortability Advantages of Backpack Coolers When discussing convenience, portability is one of the most decisive factors where backpack coolers often outperform traditional coolers. Their hands-free design allows users to move naturally, making them ideal for hiking, festivals, th...
View MoreKeeping Freshness on the Move — Discover the Power of the Cooler Backpack
The Cooler Backpack offers a reliable way to transport chilled or warm meals while maintaining stable temperatures for hours. Built with dense insulation and sealed seams, it minimizes temperature exchange between the inside and outside environment. Whether used as an everyday lunch carrier or part of a professional delivery setup, the Cooler Backpack keeps food fresh and safe wherever the day takes you.
The interior of Backpack Cooler Bags features multi-layered insulation combining reflective and foam materials. Reflective films deflect radiant heat, while foam cores reduce conductive heat transfer. This structure helps maintain consistent cooling, even in warm or humid outdoor conditions.
Soft Cooler Backpack designs often include a spacious main compartment that fits meal boxes, drinks, or dessert trays. Dividers keep items separated to prevent damage or spills. Additional exterior pockets provide space for utensils, condiments, or delivery documents, offering better organization for both personal and professional use.
The Backpack Cooler Bags structure emphasizes comfort. Adjustable shoulder straps, back padding, and even weight distribution allow extended wear without fatigue. These ergonomic advantages make it ideal for food delivery riders, hikers, or anyone needing hands-free convenience.
Each Cooler Backpack uses tough outer fabrics that resist tearing and moisture. The inner liner is waterproof and easy to wipe clean, helping maintain hygiene. Zippers with reinforced stitching provide long-term reliability even with frequent use or heavy contents.
A Soft Cooler Backpack makes outdoor dining easier. Load it with ice packs, chilled fruit, or bottled drinks, and its insulation keeps everything cool for hours. The backpack format also keeps your hands free to carry other essentials like chairs, blankets, or sports gear.
For bakers or dessert shop owners, Backpack Cooler Bags are a dependable option for keeping pastries, cakes, or creams in ideal condition during delivery. Flat bases and removable inserts help maintain stability and prevent tipping or sliding of delicate items.
Food couriers prefer Cooler Backpack products for their combination of insulation and convenience. They maintain both hot and cold sections within the same bag while providing freedom of movement. Reinforced handles and reflective strips also improve safety and visibility during night rides.
When selecting Backpack Cooler Bags, look for fabrics that are durable, water-resistant, and easy to clean. Reinforced zippers and tight stitching extend the lifespan of the product. Manufacturers like Pinghu Liangjie, certified with ISO, Sedex, and Aeon standards, offer consistent quality and reliable craftsmanship for Soft Cooler Backpack production used in both domestic and international markets.
Cooler Backpack products combine insulation performance, storage capacity, and carrying comfort into one versatile solution. Whether delivering meals, spending time outdoors, or transporting baked goods, Backpack Cooler Bags and Soft Cooler Backpack models keep freshness on the move with dependable quality and thoughtful design.