5-layer insulated plastic bottle case maneuver The "five-layer wall" protects the coldness. Overwhelming cold retention power by layering different materials. Special 5-layer structure with different materials When you go out in the middle of summer, outdoors, or in sports scenes, bottled drinks quickly become ......lukewarm. To solve such problems, this "5-layer cold insulated PET bottle case" was born. The special structure of 5 layers of materials with different properties blocks the heat of the outside air and keeps it cold for a long time. "5-layer structure" that keeps you cold for a long time It adopts a five-layer layer structure that combines polyester, non-woven fabric, microfiber, and aluminum deposition sheet. It minimizes the impact of outside air and provides superior cold retention beyond a normal case. Built-in "microfiber" to absorb condensation The inside is made of microfiber fabric, which quickly absorbs condensation generated when cold plastic bottles are put in. It does not get wet in your bag and can be carried comfortably. When not in use, "store compactly" When not in use, it can be folded flat, so it doesn't take up much space in your bag. "L-shaped zipper" that is easy to put in and take out It uses an L-shaped zipper that opens wide, making it very smooth to put plastic bottles in and out. Wide range of sizes It is compatible with common 500ml to 600ml plastic bottles, providing strong support for daily hydration. Product Specification Size: About W130 × D20 × H250mm Weight: Approx. 35g Material: Main Material (Body Surface): 100% Polyester Filling: Non-woven fabric, Microfiber, Aluminum Film, Polyethylene Main Material (Body Surface): 80% Polyester, 20% Nylon (Microfiber) Color (JAN Code): Black (4573306 873143) Grey (4573306 873150) Country of Origin: China Overview This is a "5-layer cold insulated PET bottle case maneuver" that boasts amazing cold retention power. The unique structure of five different materials is layered to block the heat of the outside air and keep it cold for a long time. The microfiber inside absorbs condensation well, so you don't have to worry about getting your bag wet. The L-shaped zipper makes it easy to put in and take out, and folds down slimly when not in use. It is an essential item for midsummer outings and active scenes, and pursues functional beauty.