Material: food grade material, BPA-free, no harm to your health. Lightweight, reusable, healthy and environmentally friendly. Leak-proof and drop-proof.Unique design: this stylishly designed water bottle can be easily folded to 1/4 of the original size, space-saving and easy to carry. Each water bottle comes with a metal buckle for hanging on a backpack, bicycle, belt loop, etc., or carried by hands that are not easy to lose.Wide mouth and large capacity: robust seal, easy to open. Total 3 folding water bottles with large capacity, each bottle can hold 700ml of water or your favorite drinks. This makes it easy to refill water or ice and the interior is easy to clean. 3 colours for you.Widely used: hiking, running, camping, picnics, cycling or travelling, etc. In addition to water filled, can be placed in the refrigerator, it will not freeze and deformation damage, can be used as cooling packs.We are Leikurvo - We know that a company that does not show true love to its customers cannot gain trust and support from them. If you have any advice, please let us know how we can make it better. We are appreciated.Product descriptionFoldable water bottle set of 3.Colour: black, white, blue.Material: BPA free.Capacity: 700 ml.Size: 22.6 x 12.8 cm.Features:-- Durable seal, easy to open.-- BPA free with FDA approved polyethylene inner shell.-- The included carabiner can be used to clamp the bottle to the gear when needed, and also hold the bottle for storage.-- This water bag can be folded, rolled or flattened and stands when full.-- By filling the bottle 1/2 to 2/3 full and standing upright in the freezer. Once frozen, just pop out of the bottle and enjoy a cool drink for hours.-- You can wear it whenever and wherever. Very comfortable.* Note:1. The elastic band should be attached to the bottom of the spout.2. Do not tighten it too tightly during normal use.3. The temperature of the water poured into the bottle should be appropriate.4. Do not expose the bottle to a temperature of 28 degrees or more outdoors for a long time.Package includes:3 x collapsible water bags with carabiners.