1 / 7The Coldest Water Insulated Bottle with Straw Lid, 40 oz
The Coldest Water Insulated Water Bottle and Straw Lid is a 40 oz stainless steel bottle in Stealth Black. Its double-wall construction and straw cap suit buyers who want a reusable bottle for water, while its stated 4-inch base diameter is worth comparing with your cup holder or bag.
At a glance
- Double-wall stainless steel construction and straw cap are the listed core features.
- The product listing describes a straw lid and bottle in its included-components field.
- Manufacturer claims cold drinks stay cold for 36+ hours and hot drinks stay hot for 13+ hours. These are claims, not independent measurements.
Reference price: $43.99
Price checked: Nov 14, 2026
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Pros and cons
Pros
- The straw cap offers a drinking option without removing a separate drinking lid.
- The stated 4-inch-wide, 12-inch-high dimensions help buyers assess storage fit before purchase.
- Customer feedback mentions temperature retention and size as positives.
Cons
- Hand-wash-only care requires manual cleaning rather than machine washing.
Technical specifications
14 specifications| Brand | The Coldest Water |
|---|---|
| Model | Insulated Water Bottle and Straw Lid |
| Material | Stainless Steel |
|---|---|
| Insulation feature | Double Wall |
| Cap type | Straw Cap |
| Recommended use | Water |
| Age range | Adult |
| Theme | Sport |
| Capacity listing | 2.5 pounds |
|---|---|
| Dimensions (W x H) | 4"W x 12"H |
| Base diameter | 4 inches |
| Color | Stealth Black |
| Care instructions | Hand Wash Only |
|---|---|
| Number of items | 1 |
What to know before buying
Listing details to confirm
The listing's 40 oz title conflicts with the technical capacity field, which says "2.5 pounds" rather than a liquid-volume unit. Confirm the actual capacity for the selected listing before buying. The claimed temperature-retention durations and leak-proof performance are manufacturer statements, not independently verified results.
What’s in the box
Included- Insulated water bottle
- Straw lid
Who is it for?
A good fit for
- Adults seeking a stainless steel reusable water bottle with a straw cap for water.
- Buyers who prioritize a larger bottle and can accommodate the listed 4-inch base diameter.
Less suited to
- People who need a dishwasher-safe bottle.
- Buyers who require a confirmed liquid capacity or verified leak-proof performance before purchase.

Customer reviews on Amazon
- 5 stars
79% 79% - 4 stars
9% 9% - 3 stars
5% 5% - 2 stars
2% 2% - 1 star
5% 5%
Customer feedback highlights cold retention, ice lasting for hours, size and color as positives. Buyers considering this bottle for travel may appreciate those reported benefits, alongside its listed stainless steel, double-wall construction and straw cap. Feedback is mixed on durability and leakage, with reports ranging from sturdy and non-leaking to lid breakage or leaks. Value opinions also differ, so the reported performance may not justify the price equally for every buyer.
Positive themes
- Customers report that drinks stay cold and ice lasts for hours.
- Customers mention the bottle's size and color positively.
Mixed feedback
- Feedback is mixed on durability and leakage, including reports of lid breakage or leaking.
- Opinions on value for money differ.
Frequently asked questions
What is the listed capacity?
The title describes the bottle as 40 oz, but the technical capacity field says "2.5 pounds." These conflict, so confirm the liquid capacity for the selected listing.
What components are listed as included?
The included-components field names an insulated water bottle and a straw lid.
How should the bottle be cleaned?
The care instructions say "Hand Wash Only."
Are the temperature claims independently confirmed?
No. The listing claims 36+ hours cold and 13+ hours hot, but these are manufacturer claims rather than independent test results.

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