COLDEST 15oz Limitless Ultra v8

Red Luna Ultra / 15oz
4.8
Rated 4.8 out of 5 stars
933 Reviews
$45 $54SAVE 16%
36+ Hours Cold | 100% Leakproof | Cupholder Friendly

1 in stock
🔒 Secure Checkout ↩️ 30-Day Easy Returns ⚡ Ships Within 24hrs
Original Design
Built To Last
Free Shipping & Returnsover $125
Secure Checkout
Description

Meet the COLDEST 15oz Limitless — the perfect coffee & tea cup for anyone who wants one cup that does it all. Triple-wall vacuum insulation and pro-grade 18/8 stainless steel keep your coffee and tea piping hot for 13+ hours and cold brew or water ice-cold for up to 50+ hours — with no metallic taste and no sweating on the outside.

It’s engineered for real life: 100% leakproof so it’s safe in any bag or backpack, an ergonomic handle sized to fit your hand, and a base that drops straight into your cupholder. Versatile, leakproof, superior functionality — zero fuss.

Make it work for every drink with three included lids — Coffee, Sip, and Chug — plus the Blendinator attachment for shakes, pre-workout, and powder mixes. From your morning brew to a post-gym smoothie, the 15oz keeps up. Personalize it to make it yours, and it’s compatible with COLDEST wide-mouth lids and CIRKUL lids too.

Details

Key Features

  • Up to 50+ hours cold / 13+ hours hot — triple-wall vacuum insulation.
  • 100% leakproof lid — bag-and-backpack safe.
  • Ergonomic handle sized to fit your hand; fits cupholders.
  • 3 interchangeable lids — Coffee, Sip, Chug — plus the Blendinator for shakes & mixes.
  • Pro-grade 18/8 stainless steel — no metallic taste, no sweat.
  • Compatible with COLDEST wide-mouth lids & CIRKUL lids.

Size & Fit

  • Capacity: 15 oz
  • Handle: ergonomic, sized to fit your hand
  • Fits standard cupholders

Specs & Dimensions

  • Capacity: 15 oz
  • Material: 18/8 pro-grade stainless steel, BPA-free lids
  • Insulation: Triple-wall vacuum — up to 50+ hrs cold / 13+ hrs hot
  • Lids: 3 included (Coffee, Sip, Chug) + Blendinator
  • Handle: ergonomic, hand-fit; fits cupholders

Care & Warnings

Care:

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

Warnings:

Choking hazard: small parts — not for children under 8; use with adult supervision. Hot liquids: use extreme caution — changes in altitude or pressure can cause buildup and unexpected eruption.


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.

One bottle. Every drink. All day.

Morning coffee, midday pre-workout, ice water all afternoon — the COLDEST 15oz Limitless keeps up with every pour. Triple-wall vacuum insulation holds your drink cold for up to 50+ hours and hot for 13+, and the 100% leakproof lid means you can drop it in your bag and forget about it.

Hot or cold, for hours
Up to 50+ hours cold and 13+ hours hot, with triple-wall vacuum insulation that never sweats.
100% leakproof
A fully sealed lid that's safe in any bag, purse, or backpack — no drips, no mess.
Made to fit your life
A hand-fit ergonomic handle, cupholder-friendly base, and 3 lids (Coffee, Sip, Chug) plus the Blendinator.
4.8
Rated 4.8 out of 5 stars
Based on 933 reviews
Total 5 star reviews: 825 Total 4 star reviews: 55 Total 3 star reviews: 36 Total 2 star reviews: 10 Total 1 star reviews: 7
94%would recommend this product
933 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    5 Stars

    There is not much to dislike aboutvtgese cups. The definately keep things cold a long timexand if you put a slushie into your cup it does not melt away fast. It stays! I love the different sizes and patterns. I am pretty picky when it comes to things i use on the regular but these check all the boxes. They were well thought out and well engineered. If you haven’t tried these- take advantage of a sale and pick one up to try. I promise, you wont be disappointed!

    L
    Lori
  • Rated 5 out of 5 stars
    13 hours ago
    5 Stars

    Love it so much

    L
    Lisa
  • Rated 5 out of 5 stars
    16 hours ago
    Excellent product

    I use this a lot at work. It is great for coffee. Beautiful design.

    CH
    Cherilyn H.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    5 Stars

    I love love love my coldest tumbler . This is my 4th so far ❤️

    K
    Kim
  • Rated 5 out of 5 stars
    Yesterday
    Love!!

    I am an official Coldie so I can’t tell you how much I love these products. Ice for days! This 15 oz I use for coffee. It stays warm all day. Moonlight mermaid is absolutely beautiful. I definitely recommend this product, but I feel like I should add a warning. You will get addicted…BUYER BEWARE!

    WW
    Willa W.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    5 Stars

    I have 3 of these and i love the lid for coffee. No spills!

    E
    Erika
  • Rated 4 out of 5 stars
    Yesterday
    4 Stars

    The actual product is very well worth it. But the box picture and actual item seem to be shades off. So if your going to purchase by it being site unseen so to soeak just know, that the colors might not be true to representation like a shade or two off.

    B
    Betty
  • Rated 5 out of 5 stars
    2 days ago
    5 Stars

    It is perfect for my grandson, love the different lids for it and the design is better in person.

    H
    Heather

Frequently Asked Questions

How long does the COLDEST 15oz Limitless keep drinks cold?
Up to 36+ hours ice-cold, and 13+ hours hot, thanks to triple-wall vacuum insulation.
Is the 15oz Limitless water bottle leakproof?
Yes. The lid seals 100%, so you can toss it in a bag or backpack without worrying about spills.
Will the 15oz fit in a cupholder?
Yes — the non-slip base is sized to fit 99% of car, stroller, and desk cupholders.
What lids come with the 15oz Limitless?
Three interchangeable lids — Coffee, Sip, and Chug — plus the Blendinator attachment. It's also compatible with COLDEST wide-mouth lids and CIRKUL lids.
Is the COLDEST 15oz dishwasher safe?
We recommend hand washing to protect the finish. Don't freeze or microwave the bottle.
What is the 15oz bottle made of?
Pro-grade 18/8 stainless steel that's BPA-free, so there's no metallic taste and no sweating on the outside.
Can I personalize the 15oz bottle?
Yes — use the Personalize option near the top of the page to add your custom touch before adding to cart.
What's your return policy?
Risk-free returns — if the 15oz isn't the right fit, send it back, no hassle.