1. Introduction
Thank you for choosing the Meoky 40 oz Insulated Tumbler. This manual provides essential information for the proper setup, operation, and maintenance of your new tumbler. Designed for convenience and durability, your Meoky tumbler features double-wall vacuum insulation to keep beverages cold for extended periods, a 100% leak-proof lid with versatile drinking options, and a design that fits most standard cup holders.

Figure 1: Meoky 40 oz Tumbler (Fairyland)
2. Product Components
Your Meoky 40 oz Tumbler package includes the following:
- 1 x Meoky 40 oz Insulated Tumbler
- 1 x 2-in-1 Lid with Flip Straw and Spout
- 1 x Silicone Handle (integrated)

Figure 2: Tumbler Lid and Straw Components
3. Setup and First Use
- Unpack: Carefully remove all components from the packaging.
- Initial Cleaning: Before first use, wash the tumbler, lid, and straw thoroughly with warm water and mild soap. Rinse completely. Refer to the Maintenance section for detailed cleaning instructions.
- Assemble Lid: Ensure the silicone straw is securely attached to the underside of the lid. The flip straw mechanism should move freely.
- Secure Lid: Place the lid onto the tumbler and twist clockwise until it is tightly sealed. The double threads ensure a secure, leak-proof fit.
4. Operating Instructions
4.1 Filling Your Tumbler
- Fill your Meoky tumbler with your desired cold beverage. For optimal cold retention, fill with ice and then your drink.
- Do not overfill. Leave some space below the lid to prevent spills.
- Ensure the lid is securely twisted on after filling to maintain insulation and prevent leaks.
4.2 Using the 2-in-1 Lid
The innovative lid offers two convenient ways to drink:
- Flip Straw: Flip up the integrated straw for easy sipping.
- Direct Spout: Flip up the separate spout cover for direct drinking.

Figure 3: Two Ways to Drink
4.3 Leak-Proof Design
The Meoky tumbler is designed to be 100% leak-proof when the lid is securely closed and the straw/spout covers are in the down position. This allows for worry-free transport.

Figure 4: Demonstrating Leak-Proof Feature
4.4 Cupholder Friendly Design
The tapered base of the tumbler is designed to fit most standard car cup holders, making it an ideal companion for travel and daily commutes. The integrated silicone handle provides a comfortable and secure grip.

Figure 5: Tumbler in Car Cupholder

Figure 6: Soft Handle for Comfortable Grip
4.5 Non-Slip Base
The tumbler features a non-slip base to help prevent accidental tipping and ensure stability on various surfaces.

Figure 7: Non-Slip Base
5. Maintenance and Care
To ensure the longevity and hygiene of your Meoky tumbler, please follow these care instructions:
- Hand Wash Only: The tumbler is not dishwasher safe. Wash all components by hand with warm, soapy water.
- Cleaning the Lid and Straw: Disassemble the lid and straw for thorough cleaning. Use a straw brush to clean the inside of the straw.
- Drying: Allow all parts to air dry completely before reassembling or storing to prevent odor and mildew.
- Storage: Store the tumbler with the lid off to allow air circulation.

Figure 8: Tumbler with Ice, illustrating cold retention
6. Troubleshooting
If you encounter any issues with your Meoky tumbler, please consider the following:
- Leakage: Ensure the lid is securely twisted onto the tumbler and that the flip straw and spout covers are fully closed. Check the silicone gasket inside the lid for proper placement and any damage.
- Reduced Insulation: Verify that the lid is tightly sealed. Extreme external temperatures can affect insulation performance.
- Difficulty Cleaning: Ensure all lid components are separated for thorough cleaning. Use appropriate brushes for the straw and small crevices.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Meoky |
| Model | 40 oz Tumbler |
| Capacity | 40 Ounces |
| Material | Food-grade Stainless Steel |
| Insulation | Double Wall Vacuum Insulated |
| Cold Retention | Up to 34 Hours |
| Lid Type | 2-in-1 Flip Straw and Spout Lid |
| Leak-Proof | 100% (when closed) |
| Base Feature | Non-slip |
| Handle | Integrated Silicone Handle |
| Compatibility | Cupholder Friendly |
| Care Instructions | Hand Wash Only |
| Dimensions | 3.92"W x 10.35"H |
| Item Weight | 1.61 pounds |
8. Safety Information
- Do not use in microwave, on stovetop, or in any type of oven.
- Keep out of reach of children when filled with hot liquids to prevent burns.
- Do not use with carbonated beverages as pressure buildup may cause lid failure or leakage.
- Ensure the lid is properly secured before drinking or transporting.
9. Warranty and Support
Specific warranty details are not provided in this manual. For information regarding warranty coverage, product support, or to contact customer service, please visit the official Meoky website or refer to the product packaging for contact details.