Starbucks Starbucks Pet Bottle Cover for 480-600ml Bottles - Sold Individually Color: Black High-quality, stretchy material The fabric cover is durable and can be used for a long time. It has air holes. Note: ☆ When inserting a pet bottle or water bottle, it can be difficult to insert if there are no holes to release the air, so a 5mm air hole is provided at the bottom to make it easier to insert. This is not a defect. Please be aware of this before purchasing. As this is an overseas product, there may be wrinkles, fraying, or odors. Please understand this beforehand. The black and gray fabrics are different, so the thickness is slightly different. Starbucks Starbucks Pet Bottle Cover