Kollea Cooler Box 30L 4-Layer Insulation Soft Cooler Bag Black

【4-Layer Insulated Structure for Excellent Cold/Hot Retention】The cooler bag features a 3-layer structure including 1680D high-density oxford fabric, 5mm thick EPE insulation cotton, and a waterproof aluminum liner. Additionally, a PVC board is used at the bottom to enhance insulation. Compared to common 900D materials, it is more resistant to abrasion and has a seamless hot-press processed structure that prevents water from entering. With approximately 8 hours of cold/hot retention, it's convenient for outdoor activities and shopping.
【Lightweight and Easy-to-Carry Design】The 30L cooler box weighs approximately 683g and folds to a thickness of about 9cm (36.5×28.5×9cm). The honeycomb structure frame balances lightness with sturdiness. The shoulder strap is padded for reduced shoulder strain. It can be folded compactly for storage when not in use.
【User-Friendly Multi-Functional Design】The Kollea cooler bag can be carried by hand, on the shoulder, or crossbody. The shoulder strap features a cushioned pad, and the sides have non-slip grips. The exterior has three pockets (front + two side mesh pockets) for convenient organization of small items. A small opening on the top allows for quick access to items without opening the entire cooler.
【Leak-Proof and Waterproof Design】Voltage fusion technology ensures that the inner aluminum foil seams are tightly sealed, maintaining cooling efficiency for extended periods. It can be used not only as a lunch bag but also for temporary fish storage or as a water container. The outer oxford fabric is robust and durable, boasting excellent waterproof performance. The waterproof aluminum foil interior makes cleaning easy – simply wipe away food debris or condensation.
【Versatile for Various Occasions】The 30L soft cooler has interior dimensions of approximately 36.5×28.5×29cm, capable of holding about 24 500ml PET bottles or about 40 350ml cans. The 20L soft cooler bag measures approximately 33×24×26cm and can hold about 20 500ml PET bottles or about 30 350ml cans. Made with materials suitable for outdoor use, it's convenient for various situations such as park outings, BBQs, picnics, camping, grocery shopping, cherry blossom viewing, fishing, sports events, short trips, watching games, and as a lunch bag.

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