This portable and practical tumbler carrier holder can meet your needs for different activities. It is mainly used to protect water bottles from scratches and broken, not only indoors such as in offices, conference rooms, homes, badminton halls, yoga rooms, etc., but also for outdoor activities such as walking, cycling, driving, traveling, camping, boating Wait, realize hands-free.SpecificationColor: BrownMaterial: NeopreneSuitable for Bottle Capacity: 30ozBottom Diameter: 7.5cm / 2.95"Mouth Diameter: 10cm / 3.93"Total Height: 19cm / 7.48"Package List: 2 x Tumbler Carrier Holders, 2 x Adjustable Shoulder StrapAdvantage:1. Made of durable Neoprene material,  the fabric is soft and breathable, easy to clean, it is waterproof, shockproof, and dustproof; Moreover, it is light and compact, has a certain degree of elasticity, can suitable for most water glasses, easy to carry out.2. Stable Support Structure: It can stand up, and the bottom has dense stitching, which can stabilize its structure well.3. Detachable Button design: The handle is designed with a detachable buckle which is convenient for you to disassemble and put on the strap.4. Dual-use Style: The package comes with adjustable shoulder straps, you can catch it on the carrier when you go outside, and you also can tote it with your hand.InstructionPlace the water bottle into the bag, open the detachable buckle, and connect the shoulder strap.NOTEBefore use, the tumbler carrier holders can be placed in a ventilated place for a period of time.