

Mainstays 20 oz Stainless Steel Double Wall Tumbler , Straw Lid, Black
Key item features
- Cold Retention: Featuring double-wall vacuum insulation, it keeps beverages ice-cold for hours, perfect for hot summer days or intense outdoor activities.
- Durable Construction: Made from sturdy 18/8 stainless steel, this tumbler withstands daily bumps and scratches, ensuring long-lasting use.
- Ergonomic Handle: Designed with an ergonomic handle, it provides a comfortable grip, making it easy to hold and drink from anywhere, anytime.
- Travel-Friendly: With a 20-ounce capacity, it fits well in most car cup holders and exercise equipment, making it convenient for travel and workouts.
- Easy Maintenance: The wide-mouth design allows for effortless ice addition and cleaning, and it's dishwasher-safe for added convenience.
- Straw Lid: Comes with a straw lid and two straws, featuring a four-way threaded design for different straw placements based on your drinking hand preference.
Specs
- MaterialStainless Steel
- Volume capacity20 oz
- FeaturesDouble-Walled
- ActivityTravel
Reviews summary
- : Allows for convenient cleaning of straw and lid.
- : Ideal for carrying and fitting in cup holders.
- : Available in various attractive shades.
- : Made to withstand drops and daily use.
- : Offers quality at a lower cost.
- : Can be effortless with soft silicone straw, but also notoriously difficult for some users.
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About this item
Product details
- ALL - DAY COLD RETENTION:Featuring double - wall vacuum insulation and sturdy 18/8 stainless - steel construction, it keeps beverages ice - cold for hours. Whether you're out for a fun day in the summer heat or engaging in intense outdoor sports, you can always enjoy a refreshing cold drink.
- DURABLE & COMFORTABLE GRIP:This travel mug comes with an ergonomically designed handle, making it easy to hold and drink from anywhere, anytime. The high - quality stainless - steel material ensures its durability, withstanding various bumps and scratches in daily use.
- CONVENIENT FOR TRAVEL:With a 20 - ounce capacity, it fits well in most car cup holders and those on exercise equipment. Whether you're driving or working out at the gym, it's easy to place. The wide - mouth design allows for effortless ice addition and cleaning, and it's dishwasher - safe, bringing great convenience to your life.
Specifications
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Features
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Customer ratings & reviews
Reviews summary
- : Allows for convenient cleaning of straw and lid.
- : Ideal for carrying and fitting in cup holders.
- : Available in various attractive shades.
- : Made to withstand drops and daily use.
- : Offers quality at a lower cost.
- : Can be effortless with soft silicone straw, but also notoriously difficult for some users.
Customer images






+121 images
Showing 1-3 of 179 reviews
Verified Purchase
My son's new favorite forever tumbler!
I have tried about a dozen different tumblers for my 2.5 year old son who loves water and this one is by far the best one! The size is perfect, design is super cute, no issues with leaking so far, overall it meets every requirement I'd have. Straw is easy to drink out of, no issues with suction. It keeps drinks cold with ice and we intend to purchase a second one. I would highly recommend this tumbler to anyone with kids!
Verified Purchase
great buy!
the cup is great keeps hot and cold. kept ice for over 12 hrs. pretty good for a 10.00 cup. The one thing I don't care for is the suction power you need with the straw. it's truly leak proof so I get why you need to use a little more strength. aside from that the cup is awesome!
Verified Purchase
Cold all day
Delightful. Keeps beverages cold all day, seals tight, doesn't leak or drip. Easy top rack dishwasher cleanup. The straw is not a favorite. Don't like the texture and found it difficult to assemble for proper uptake. Insert a plasiic straw through the plug and it's perfect. Have two and will be purchasing at least one more.
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