40oz Stainless Steel Vacuum Tumbler with Leakproof Straw

What sizes are available for this tumbler?

This tumbler is available in both 30 oz and 40 oz capacities. The 40 oz option is ideal for all-day hydration or sharing, while the 30 oz is more compact and fits most standard cup holders. Both sizes feature the same double-wall vacuum insulation and leakproof straw design.

Is the tumbler truly leakproof with the straw?

Yes, the tumbler includes a specially designed leakproof lid and straw mechanism. When the straw is in the upright position, it seals tightly to prevent spills. The lid also has a silicone gasket that creates a secure seal when closed. However, please note that liquids can still spill if the cup is tipped over with the straw in the open/drinking position.

How long does the insulation keep drinks hot or cold?

The double-wall vacuum insulation effectively maintains temperatures for hours. For cold beverages with ice, expect ice retention up to 24 hours and cold liquid up to 12 hours. For hot drinks, the tumbler keeps liquid hot for up to 6 hours. Actual performance may vary based on ambient temperature and how often the lid is opened.

Can I customize the tumbler with my own design or logo?

Yes, this tumbler is fully customizable. You can add text, logos, or artwork through our online design tool. We offer various color options and printing methods such as laser engraving or full-color wrap. Minimum order quantities may apply for certain customization methods. Please check the product page for specific options and pricing.

What material is the tumbler made of, and is it safe?

The tumbler is constructed from high-quality 18/8 stainless steel, which is food-grade, non-toxic, and BPA-free. The exterior is powder-coated for durability and grip, while the interior has a non-reactive surface that does not transfer metallic tastes. The lid and straw are made from food-safe Tritan or polypropylene (check product listing for specifics). All materials comply with FDA safety standards.

What is your warranty and return policy?

We offer a 1-year warranty against manufacturing defects for the tumbler body and lid. This does not cover normal wear and tear, misuse, or accidental damage. If you receive a defective item, we will replace it free of charge. For non-customized orders, we accept returns within 30 days for a full refund (item must be unused and in original packaging). Customized items are non-returnable unless defective.

How should I clean the tumbler and straw?

Hand washing is recommended to preserve the finish and insulation. Use warm soapy water and a soft sponge. The straw can be cleaned with the included brush or a thin bottle brush. The lid is top-rack dishwasher safe, but for longevity, hand washing is preferred. Avoid abrasive cleaners or scouring pads that could scratch the powder coating.

Does this tumbler fit in a standard car cup holder?

The 30 oz version has a diameter of approximately 3.3 inches (8.4 cm), which fits most standard cup holders. The 40 oz version is about 3.8 inches (9.7 cm) in diameter and may be too wide for many car cup holders. We recommend measuring your cup holder before selecting the 40 oz size if you plan to use it while driving.

Usage Instructions

• Before first use, wash the tumbler, lid, and straw with warm soapy water; rinse thoroughly.
• Fill with your desired beverage. For hot drinks, allow to steep for a few minutes before closing lid to maximize insulation.
• Ensure the straw is fully inserted and the lid is securely closed to maintain leakproof seal.

Precautions

• Do not microwave or freeze the tumbler.
• Avoid carbonated beverages, as pressure may cause leakage.
• Do not use abrasive cleaners or scouring pads; hand wash recommended.
• Do not overfill with hot liquids; leave some space to allow steam expansion.
• Keep away from young children when containing hot liquids.
• Check lid gasket periodically for wear; replace if damaged.

Available Capacities

• 20 oz (600ml)
• 30 oz (900ml)
• 40 oz (1.2L)

Available Colors

• White
• Baby Blue
• Navy
• Pink
• Light Purple
• Light Green
• Custom options (contact for details)