Era Flip 40oz | Cascade
- silicone
The 3-second version
- Fully leakproof seal locks cold and iced carbonated drinks inside
- Flip-down covered straw protects from spills and contamination
- Keeps beverages cold for more than 24 hours with vacuum insulation
- Cold and iced drinks only—no hot beverages
- Carbonated drinks need 50% ice to liquid ratio
- Must be locked to prevent leaks
Why it's on GiftsFeed
Insulated tumbler with fully leakproof covered-straw lid for cold drinks
Standard straw tumblers either leave the straw exposed to dirt and airborne debris or they leak when sealed. This one solves both problems with a hinged cover that flips down over the straw and a locking mechanism that actually contains liquid—even fizzy drinks—when the tumbler tips or falls.
The difference matters if you carry drinks in a bag, set them on unstable surfaces, or drink carbonated beverages that most "leakproof" lids can't handle. You give up hot-drink versatility, but you gain a tumbler that keeps iced coffee, sparkling water, or plain cold water exactly where it belongs through a full day of movement.
Good gift when
- People who've given up on leakproof claims from other tumblers
- Commuters who need a sealed drink in a crowded bag or moving vehicle
- Anyone who prefers carbonated drinks and wants a tumbler that handles them
- Those who want all-day cold hydration without refilling
Skip it if This tumbler works only with cold or iced beverages—hot liquids create dangerous pressure buildup and leaking, and the straw poses a scalding risk with heated drinks.
Specs
- Capacity
- 40 ounces
- Insulation
- Double-wall vacuum, keeps drinks cold 24+ hours
- Lid type
- Leakproof SlideSeal with flip-down covered straw
- Compatible beverages
- Cold and iced drinks, including carbonated (50% ice ratio recommended)
- Hot beverage use
- Not recommended—pressure buildup and scalding risk
- Cup holder fit
- Yes
- Straws included
- Silicone and metal options
What's included
- 40oz insulated tumbler with SlideSeal lid
- Silicone straw
- Metal straw
If you're giving it
- No sizing to guess
Practical for commuters and anyone tired of tumbler spills, though cold drinks only.
The details
Most covered-straw tumblers drip when knocked over. This one seals completely. The SlideSeal lid locks in place to contain cold drinks and even iced carbonated beverages without leaking, then flips open when you want a sip. A silicone straw sits beneath the hinged cover, ready to use but protected from dust and splashes when closed.
Double-wall vacuum insulation keeps cold drinks cold for over 24 hours. The 40-ounce capacity fits a full day's hydration, and the base tapers to standard cup holders despite the generous volume. Two straw options come with the tumbler: a soft silicone piece for comfortable sipping and a metal alternative that reduces plastic contact with your beverage.
The locking mechanism holds even when the tumbler tips in a bag or rolls across a car seat. Fill it with water, iced coffee, or sparkling water, snap the lock into place, and trust it won't leak. When you're ready to drink, flip the straw cover down with one hand and sip without removing the entire lid.
This tumbler works only with cold or iced beverages. Hot liquids build pressure inside the sealed chamber and may force liquid out through the lid or straw opening, and using a straw with hot drinks creates a burn risk. Stick to chilled drinks and the seal performs as promised.
The wide opening makes it easy to add ice and clean every corner. The exterior stays dry, with no condensation to mark up surfaces or wet your hands. Whether you're commuting, working at a desk, or spending hours outdoors, the tumbler fits into your routine without demanding constant attention or leaving puddles.
40-ounce double-wall stainless steel tumbler with a flip-down silicone straw and locking seal that stops spills even when tipped
Ships and sold by BruMate. About this merchant
Questions
- Can I use this tumbler with hot coffee or tea?
- No. Hot beverages cause pressure to build inside the sealed lid, which can force hot liquid out through the top or sides and create a scalding risk when using the straw. This tumbler is designed only for cold and iced drinks.
- Will it really not leak with carbonated drinks?
- Yes, when locked and filled with a 50% ice to liquid ratio. The SlideSeal lid is designed to handle the pressure from iced carbonated beverages without leaking, unlike most straw tumblers.
- Does the straw stay clean when I'm carrying this around?
- Yes. The flip-down cover keeps the straw protected from dust, debris, and contamination when closed. You flip it open only when you're ready to drink.
- How long does it actually keep drinks cold?
- The double-wall vacuum insulation keeps beverages cold for more than 24 hours. Actual performance depends on starting temperature, ambient conditions, and how often you open the lid.
- Will this fit in a car cup holder?
- Yes. The base is tapered to fit standard cup holders despite the 40-ounce capacity.
- What's the difference between the two straws?
- The silicone straw is softer and more comfortable for sipping. The metal straw reduces the amount of plastic in contact with your drink. Both work with the leakproof lid.
No reviews yet.
The first one comes from someone who bought it here.
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