THERMOS FUNTAINER Water Bottle with Straw - 12 Ounce - Kids Stainless Steel Vacuum Insulated Water Bottle with Lid, Construction
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Best for
Best overall
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$19.99
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the 12oz Thermos FUNTAINER is the default recommendation for younger kids. A high-trust r/toddlers thread seconds the Thermos line specifically for being durable, easy to clean, and a genuine fit for car-seat, stroller and backpack cup holders, while r/kindergarten parents praise the same bottles for keeping water cold without a 'plasticy taste.' Walmart verified-purchase reviewers echo the leak-proof and dishwasher-safe claims, and r/moderatelygranolamoms regulars repeatedly call the 12oz 'cheap and practical' and easy for kids to open themselves. The vacuum insulation is rated to keep drinks cold for up to 12 hours, which is shorter than the 24-hour figure some competitors advertise, and that distinction comes up in head-to-head community discussion.
What reviewers liked
- High-trust r/toddlers and r/kindergarten communities both recommend it for durability and easy cleaning
- Verified-purchase reviewers consistently report leak-proof, dishwasher-safe performance
- 12oz size and weight praised as ideal for small hands and cup holders
- Replacement straws are widely available and inexpensive
Where it falls short
- Insulation rated to ~12 hours cold, shorter than some 24-hour competitors
- Reviewers note the silicone straw wears out and needs periodic replacement
- Straw bottles require diligent cleaning to avoid mold
- Smaller 12oz capacity may not last older kids a full active day
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Across the reviewers we read, the 12oz Thermos FUNTAINER is the default recommendation for younger kids. A high-trust r/toddlers thread seconds the Thermos line specifically for being durable, easy to clean, and a genuine fit for car-seat, stroller and backpack cup holders, while r/kindergarten parents praise the same bottles for keeping water cold without a 'plasticy taste.' Walmart verified-purchase reviewers echo the leak-proof and dishwasher-safe claims, and r/moderatelygranolamoms regulars repeatedly call the 12oz 'cheap and practical' and easy for kids to open themselves.
The vacuum insulation is rated to keep drinks cold for up to 12 hours, which is shorter than the 24-hour figure some competitors advertise, and that distinction comes up in head-to-head community discussion. The most consistent praise is for the silicone straw and snug fit that reviewers say minimizes lunchbox leaks. The biggest recurring caveat across the same communities is that the straws wear out and need periodic replacement, though several parents note replacement straws are cheap and easy to find. On balance the FUNTAINER earns its place as the most well-rounded, widely-validated pick in this category.
- Stays cold
- THERMOS vacuum insulation technology keeps drinks cold for up to 12 hours. Our stainless steel water bottles are built so their drinks are as cool on the inside as they look on the outside. Not for hot liquids
- Kid-friendly design
- This reusable metal water bottle is lightweight and compact with a push button lid so it’s easy to carry and open. The integrated carry handle features a soft touch grip
- Daily durability
- Perfect kids water bottle for school and daily use. Made with high-quality 18/8 stainless steel construction to handle drops, dings and provide everyday durability and reliability. Comes in a variety of fun colors and patterns
- Easy care and cleaning
- Pop-up straw that’s also removable for easy cleaning. This kids water bottle is dishwasher safe, though washing by hand is recommended.
- Protect what you love
- With 120 years of heritage, Thermos Brand food and beverage containers keep things fresh, sealed and protected. Trusted since 1904 because our products help make everyday life a little better, every time
I use a thermos kids water bottle (the 12-oz. funtainer is better quality than the 10-oz. bottle, but the 10-oz. bottle is a better size for ...
I love the kids thermos funtanier straw bottles , cheap and practical. Super easy for kids to open and have held up way better than much more ...
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“Review Thermos Funtainer 12 oz Kids Water Bottle with Straw EASY ...” · YouTube
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