Resa 35oz Leakproof Travel Tumbler with Handle & Straw - Nightfall

In this review of the Resa 35oz travel tumbler the bottom line is simple: this is a go-anywhere cup for people who need a truly leakproof, cold-holding tumbler with thoughtful drinking details. The reviewer found the patent-pending U-Turn lid delivers on the 100% leakproof claim for both still and carbonated drinks, so tossing it in a bag is worry-free. The mix of a ColdKey stainless straw with a SoftSip silicone tip and a removable silicone sleeve makes this tumbler feel durable, comfortable to hold, and pleasant to sip from.

Key Features

• 100% Leakproof U-Turn lid: The patent-pending U-Turn mechanism keeps liquids sealed during transport, so you can carry carbonated or cold drinks without spills.
• ColdKey stainless straw: A metal straw reduces plastic exposure and stays cool for a crisp sipping experience, finished with a SoftSip tip for comfort.
• Built-in silicone sleeve: The removable sleeve protects the powder coat from dents and improves grip while adding a subtle style element.
• BevGuard insulation: The tumbler keeps drinks cold for 24+ hours, making it suitable for long days out or extended commutes.
• Dishwasher safe components: Lids and straws are dishwasher safe and most powder coat tumblers are top-rack safe, simplifying cleaning.
• Lifetime guarantee: The product is backed by a lifetime warranty, offering long-term confidence in durability.

Who It's For

The Resa 35oz is ideal for commuters, gym-goers, and parents who need a large, reliable tumbler that can be tossed into a bag without fear of leaks and will keep beverages cold all day. It also suits anyone who prefers a metal straw and a softer drinking tip for comfort.

Those who want a very small cup for short outings or a tumbler designed primarily for hot beverages should look elsewhere, since this model is focused on cold and carbonated drink performance and a larger 35oz capacity.

Pros & Cons

Pros

• Confirmed leakproof design that works with carbonated drinks, so it travels worry-free.
• ColdKey stainless straw plus SoftSip tip gives a premium, comfortable sip with less plastic contact.
• Removable silicone sleeve protects the body and improves grip while preserving the powder coat finish.
• Long cold retention thanks to BevGuard insulation and dishwasher-safe parts for easy maintenance.

Cons

• At 35oz the size may be bulky for small cup holders or for users who prefer lighter, more compact bottles.
• Although most parts are dishwasher safe, care with the powder coat is recommended to preserve appearance over time.

Specifications

Capacity	35oz
Leakproof	100% leakproof U-Turn lid (works with carbonated drinks)
Straw	ColdKey stainless steel straw with SoftSip silicone tip
Insulation	BevGuard, 24+ hours cold
Body protection	Removable silicone sleeve
Cleaning	Lids and straws dishwasher safe; most powder coat tumblers top-rack safe
Warranty	Lifetime guarantee

Our Verdict

The Resa 35oz is a practical choice for anyone who needs a large, genuinely leakproof tumbler that also keeps drinks cold for extended periods. With a metal straw, comfortable SoftSip tip, protective silicone sleeve, and dishwasher-safe parts, it represents solid value for users who prioritize portability and spill protection over compact size.

Frequently Asked Questions

Is the tumbler really leakproof with carbonated drinks?
Yes; the patent-pending U-Turn lid is designed to be 100% leakproof and works with carbonated and cold beverages.

Are the straw and lid dishwasher safe?
Yes; lids and straws are dishwasher safe and most powder coat tumblers are top-rack dishwasher safe.

How long will it keep drinks cold?
BevGuard insulation is rated to keep drinks cold for 24+ hours under typical conditions.