This portable neoprene bottle sleeve cover is designed to provide insulation and protection for your water bottles and vacuum cups. Made from durable neoprene material, it helps maintain beverage temperature while protecting bottles from scratches and minor impacts. The snug fit design is suitable for 550ml bottles, offering a secure and comfortable grip during sports, travel, camping, and outdoor activities. Lightweight and easy to carry, this insulated sleeve is a practical accessory for keeping your drinks protected and temperature-controlled on the go.