Emsa Rocket Insulated Bottle: Modern and convenient for enjoyment on the go. The vibrant colors of the Rocket insulated bottles look great and are perfect for an active lifestyle. The Rocket insulated bottles are made from safe plastic and feature a glass insulating insert that ensures long-lasting temperature retention for beverages. Hot drinks stay warm for up to 12 hours when filled, while cold drinks remain cold for up to 24 hours. The practical lid can also be used as a cup.