This unique cap will keep your cap glowing for a long time in the dark. Simple Ecological "Have your own My Bottle! SIGG is the pioneer of aluminum bottles, and since the first generation of aluminum has been making a variety of bottles that meet the needs of the times. The consistent spirit of creating products of the highest quality is still inherited by the time that styles and designs evolve. ● The interior has a special coating that does not affect the taste of your drink, and it has an odor resistant coating. This coating is a human and eco-friendly coating that does not contain chemicals such as BPA and Phthalates. No need to worry about cracking or peeling off the coating if dents occur on the main unit. The SIGG bottle can hold any beverage, such as tea, sports drinks, fruit juice, etc. When drinking, open the cover and turn the spout 90 degrees to open. This cap is designed to allow young children to be familiar with the ability to operate a series of bottles open and close by themselves to further hydrate. Rotate it firmly from the open position to the left for easy interior cleaning. The gasket is integrated into the cap, so there is no need to worry about losing it.