1. Introduction
Thank you for choosing the Meoky 40oz Insulated Tumbler with Handle. This manual provides essential information for the proper setup, operation, and maintenance of your new tumbler. Please read these instructions carefully before first use to ensure optimal performance and longevity of your product.
2. Product Features
- Double-Wall Vacuum Insulation: Designed to maintain beverage temperature, keeping drinks cold for up to 34 hours or hot for up to 10 hours.
- Leak-Proof Lid: The lid features a unique design that seals completely when the straw is removed, preventing spills.
- Comfortable Handle: A wide and thick handle with a silicone interior provides a comfortable, non-slip grip, reducing pressure on finger joints.
- Non-Slip Base: Equipped with a non-slip base to ensure stability and prevent accidental tipping.
- Stainless Steel Construction: Durable and reusable stainless steel material.
- Silicone-Tipped Straw: Includes a stainless steel straw with a soft silicone tip for comfortable use.
- Car Cup Holder Compatible: Designed to fit most standard car cup holders.

Image: The Meoky Tumbler demonstrating its ability to keep drinks ice cold for extended periods.

Image: An illustration highlighting the 100% leak-proof feature of the lid when the straw is removed.
3. Setup
3.1 Unboxing
Carefully remove all components from the packaging. Ensure you have the tumbler, the lid with silicone tip, and the straw.
3.2 Initial Cleaning
Before first use, wash all parts (tumbler, lid, and straw) with warm, soapy water. Rinse thoroughly and allow to air dry. Refer to the 'Maintenance' section for detailed cleaning instructions.
4. Operating Instructions
4.1 Filling the Tumbler
Unscrew the lid and fill the tumbler with your desired beverage. Do not overfill; leave some space at the top to accommodate the lid.
4.2 Using the Lid and Straw
- Screw the lid securely onto the tumbler.
- Insert the stainless steel straw through the opening in the lid. The silicone tip provides a comfortable drinking experience.
- When the straw is removed, the lid's internal mechanism automatically seals the opening, making the tumbler leak-proof. This feature is ideal for transport.

Image: A close-up view illustrating the leak-proof design of the lid with its O-ring gasket and silicone tip.
4.3 Temperature Retention
The double-wall vacuum insulation keeps cold drinks chilled for up to 34 hours and hot drinks warm for up to 10 hours. For best results with hot beverages, pre-warm the tumbler with hot water before filling.
4.4 Car Cup Holder Compatibility
The tumbler's design allows it to fit comfortably in most standard car cup holders, making it suitable for travel.

Image: The Meoky Tumbler securely placed in a car's center console cup holder.
5. Maintenance
5.1 Cleaning
Hand Wash Only: To preserve the insulation properties and finish of your tumbler, hand washing is recommended. Use warm water and mild dish soap. For thorough cleaning, a bottle brush can be used for the interior, and a straw brush for the straw.
Rinse all components thoroughly after washing and allow them to air dry completely before reassembling or storing.
5.2 Storage
Store the tumbler with the lid off to allow for air circulation and prevent odors. Keep in a dry place.
6. Troubleshooting
6.1 Reduced Temperature Retention
- Ensure the lid is securely screwed on. A loose lid can compromise insulation.
- Check for any damage to the tumbler's exterior or lid that might affect the vacuum seal.
6.2 Leaking
- Verify the lid is tightly closed.
- Confirm the straw is fully removed if you expect the leak-proof seal to engage.
- Inspect the lid's silicone gasket for proper placement and any signs of wear or damage.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Meoky |
| Capacity | 40 Fluid Ounces |
| Material | Stainless Steel |
| Insulation | Double-Wall Vacuum Insulated |
| Special Features | Double Wall, Non-Slip Base, Leak-Proof Lid (straw out) |
| Included Components | Lid with Silicone Tip, Tumbler with Handle |
| Product Dimensions | 5.57"W x 11.65"H |
| Product Care | Hand Wash Only |
8. Warranty and Support
For information regarding product warranty or technical support, please refer to the documentation included with your purchase or visit the official Meoky website. Contact customer service for any issues not covered in this manual.