Description: Silicone Material: Made of premium silicone, this bottle sleeve is comfortable to the touch, odorless, and durable. It resists cracking and deformation even after repeated use. The silicone sleeve is flexible, stretchable, and resilient, allowing for a close fit to the bottle.Protection and Noise Reduction: The silicone surface provides a non-slip surface, ensuring the bottle stays stable on various surfaces and preventing accidental slips. The thick silicone sleeve also cushions impacts, providing shock and collision protection, reducing damage from accidental drops or collisions and protecting your bottle from dents, scratches, and everyday wear and tear. In addition, it can reduce the knocking noise when placing cups, thus reducing noise.