TOTAL VALUE $40
SET PRICE $26
Holiday Sale $24
Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours

Coldest Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours

20oz / Mystery
$23.99 Regular price $39.99SAVE 40%
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Up to 36+ Hours Cold* · Lid designed to seal tight · Cupholder Friendly

Size
Color
Minus Plus
🔒 Secure Checkout ↩️ 30-Day Easy Returns ⚡ Ships Within 24hrs

Fits & uses How people use this bottle.

Coldest Engineered
Built To Last
Free Shipping & Returnsover $125
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Description

A mystery Limitless at a discount — we surprise you with the colorway, you save. You'll receive a hand-picked COLDEST design; every one is a genuine Limitless with the same performance.

Meet Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours — the original size from COLDEST. Triple-wall vacuum insulation and pro-grade 18/8 stainless steel keep drinks ice-cold for up to 36+ hours and hot for 13+, with no sweating and no metallic taste.

It's 100% leakproof so it's safe in any bag, fits 100% of cupholders, and built for versatile, medium-weight all-day carry. Includes 3 lids — Sports, Sip, and Chug, plus a fruit infuser.

Make it yours with Personalize, and it's compatible with COLDEST wide-mouth lids and CIRKUL lids.

Details

Key Features

  • Up to 36+ hours cold / 13+ hours hot — triple-wall vacuum insulation.
  • 100% leakproof lid — bag-and-backpack safe.
  • Fits 100% of cupholders with a non-slip base.
  • Includes 3 lids — Sports, Sip, and Chug.
  • Pro-grade 18/8 stainless steel — no metallic taste, no sweat.
  • Fruit infuser included.
  • Compatible with COLDEST wide-mouth lids & CIRKUL lids.

Size & Fit

  • Capacity: 36 oz
  • Best for: versatile, medium-weight all-day carry
  • Fit: fits 100% of cupholders

Specs & Dimensions

  • Capacity: 36 oz
  • Material: 18/8 pro-grade stainless steel, BPA-free lids
  • Insulation: Triple-wall vacuum — up to 36+ hrs cold / 13+ hrs hot
  • Lids: 3 lids — Sports, Sip, and Chug
  • Fits cupholder: Yes

Care & Warnings

  • Hand wash only to protect the finish.
  • Do not freeze or microwave.

Small parts — choking hazard; not for children under 8 without adult supervision. Use extreme caution with hot liquids; pressure can build with altitude changes.

Shipping & Returns

  • Free 1–5 day US shipping on orders over $125.
  • Ships in 1–2 business days.
  • Risk-free returns — try it and see.
More details Right

Frequently added

Customers often grab these with their 20oz Tumbler.

  • Tumbler Lid

    $10.99

  • Coldest Paracord Handle

    $11.99 $14.99

  • The Coldest Water Bottle Brush: 3 Tools in 1

    $13

  • Mini Backpack & Squeeze Holder, Key Hanger, Mint Box

    $49 $70

  • COLDEST Mystery Mini

    $9.99 $14.99

  • Baby Mystery Mini

    $9.99 $14.99

Coldies also bought

Customers say

Customers say they love the designs and giving it as a gift.

Based on the text of 41 customer reviews (4.9 out of 5). Select a topic to see what they say.

Same cold. Surprise design. Better price.

Every Mystery is a real COLDEST Limitless — up to 36+ hours cold, 100% leakproof, fits 100% of cupholders — just at a mystery-discount because we pick the colorway.

Hours of cold
Triple-wall vacuum insulation keeps drinks cold up to 36+ hours and hot 13+, with no sweat.
100% leakproof
A fully sealed lid that's safe in any bag, purse, or backpack — no drips, no mess.
Made to fit your life
Fits 100% of cupholders, with 3 lids — Sports, Sip, and Chug so one bottle covers every drink.
4.9
Rated 4.9 out of 5 stars
Based on 41 reviews
98%would recommend these products
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41 reviews
  • Rated 5 out of 5 stars
    1 week ago
    Mystery tumbler

    Loved the mystery bottle.

    QualityRated 5.0 on a scale of 1 to 5
    DesignRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    DD
    Deborah D.
    Verified Buyer
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    1 week ago
    Love a Good Mystery!

    The mystery cups are always such fun to open! Will it be a unicorn or something I already have? Even if I already have that design I will gift it to someone!

    QualityRated 5.0 on a scale of 1 to 5
    DesignRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    SL
    Susan L.
    Verified Buyer
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    2 weeks ago
    The best cups ever.

    Love all of my purchases. Still can’t find the one with butterflies. Want to get it for my daughter. Have bought them for both of my granddaughters.

    QualityRated 5.0 on a scale of 1 to 5
    DesignRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    MM
    Maxine M.
    Verified Buyer
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    2 weeks ago
    Mystery Tumblers are so Fun

    I received a 20 oz Flirt & Flower. Don’t have any cups with this pattern. A nice surprise!

    QualityRated 5.0 on a scale of 1 to 5
    DesignRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    ER
    Elise R.
    Verified Buyer
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    3 weeks ago
    Mystery tumbler

    Nice surprise.

    QualityRated 5.0 on a scale of 1 to 5
    DesignRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    DD
    Deborah D.
    Verified Buyer
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    20oz Tumbler..Wizarding Skys..its so pretty..keeps my coffee hot till its gone!

    L
    LESLIE
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Just recently bought a large Glowie-Meow & considered finding a 2nd, 20oz cup for my coffee… couldn’t decide… NOW, I’m waiting on my THIRD Mystery Tumbler! CARA (Coldest Addiction Recovery Anonymous) may be a requirement very SOON! 😎😹😎

    K
    Kathryn
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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  • Rated 5 out of 5 stars
    1 month ago
    Beautiful

    Love the mystery packs they are a surprise and helps build my collection!!

    QualityRated 5.0 on a scale of 1 to 5
    DesignRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    TB
    torygene b.
    Verified Buyer
    Reviewing
    Mystery Limitless 20z Tumbler - 30+ colors, coffee hot 13+ hours 20oz / Mystery
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Show More

COLDEST 20oz vs. the rest

How it Stacks Up

Hot coffee all morning, iced coffee all afternoon, in your cupholder.Tap any feature for the details.Hover any feature for the details.

COLDEST 20oz compared with others
COLDEST 20ozOthers
Hot 13+ hours
Vacuum-insulated stainless steel keeps coffee and tea hot for 13+ hours. A paper cup is cold in minutes.
Cold 20+ hours
Iced coffee, tea and water stay cold for 20+ hours, and the mouth takes big ice cubes.
No sweat, no soggy cup
The outside stays dry with ice inside: no ring on your desk, no puddle in your cupholder.
Splash-resistant slide lid
A clear sliding lid for sipping on the move, with no straw needed. It's splash-resistant, made for upright sipping (not for tossing in a bag).
Fits standard cupholders
7in tall and 3.43in wide, with a non-slip rubber bottom: car, gym and stroller cupholders.
Reusable, zero cup waste
One tumbler instead of a paper cup and plastic lid every morning.
A surprise design
Each order is one randomly selected 20oz colorway from 30+ possible. You can't pick or exchange the design.

Product FAQ: Answers from COLDEST

How does the mystery 20oz work?
You get one genuine COLDEST 20oz Tumbler in a randomly selected colorway, from 30+ possible designs, with the same insulation and sliding lid as every 20oz.
Can I choose or exchange the design?
No. The design is random, so it can't be picked or exchanged, and you might get one you already own.
How long does the 20oz Tumbler keep coffee hot?
13+ hours hot, thanks to vacuum-insulated stainless steel. Use care with hot liquids: slide the lid open slowly.
How long does it keep drinks cold?
20+ hours cold, and the mouth fits big ice cubes. For the longest cold, fill it with ice first and keep the slide closed between sips.
Is the lid leakproof?
No: the clear sliding lid is splash-resistant, made for sipping upright at your desk or in a cupholder. For a bag or backpack, choose a Limitless with a Chug lid, which is 100% leakproof when closed.
See all 16 FAQs
Does it have a handle or a straw?
No. It's a straight 20oz tumbler with a clear sliding lid you sip from directly. Want a handle? The 15oz Limitless is our handle coffee cup.
How big is it?
20oz, 7in tall and 3.43in wide, with a non-slip rubber bottom.
Will it fit my car's cupholder?
Yes. It fits standard car, gym and stroller cupholders.
Can I buy a spare lid?
Yes. The 20oz Sliding Tumbler Lid is sold separately.
Is it dishwasher safe?
We recommend hand washing the tumbler and the lid with warm soapy water, and rinsing under the slide after coffee or milk drinks.
Can I return it?
This is a final-sale item, so it can't be returned or exchanged. If it arrives damaged or defective, contact our team. Details: Warranty & Returns.
Is the Mystery 20oz Tumbler covered by the Coldest warranty?
No. Mystery items are excluded from all warranty coverage, so the Limited Lifetime Warranty on Coldest drinkware does not apply to them. For any question about your order, contact support@coldest.com.
How do I clean stuck-on gunk out of the lid?
Soak the lid in soap and water overnight to loosen stuck-on gunk. The 3-in-1 Coldest bottle brush cleans bottles, lids and straws.
Can young children use it?
Kids under 8 should use it only with adult supervision. It has small parts that are a choking hazard, as listed under Care & Warnings on this page.
When do new Coldest designs drop?
New limited-edition drops release every Thursday at 9:45am Eastern, and most drops are gone once they sell out. A mystery bottle is for a surprise colorway; the drops are where you pick a design.
How will I know when my order ships?
You'll get a tracking number by email when your order ships; orders within the contiguous US ship via USPS. For any other order question, contact support@coldest.com or call 305-204-1741.

More answers from customers →