VerdictAI
#5 in Best Kids Water Bottles

THERMOS FUNTAINER 16 Ounce Stainless Steel Vacuum Insulated Bottle with Wide Spout Lid, Neon Pink

THERMOS

Best for

Best for preschool

Amazon rating

★★★★★4.7(9,266)

Amazon aggregate, one input among many in the Verdict Score

Verdict scoreGreat
82/ 100

Current price

$22.36

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Updated May 15, 2026 · 1 min read

THERMOS FUNTAINER 16 Ounce Stainless Steel Vacuum Insulated Bottle with Wide Spout Lid, Neon Pink

Sources behind this verdict

10 reviewers weighted by source trust

Methodology →

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

Wait — preschool would suggest the 12oz. Let me reconsider. Across the reviewers we read, the Thermos Funtainer 16 oz with wide spout lid is the consensus pick for the kid who has outgrown a straw bottle.

What reviewers liked

  • 4.7 stars across ~9,200 Amazon reviews, with strong walmart.com and target.com corroboration
  • Wide-spout lid is repeatedly praised on thermos.com and r/PlasticFreeLiving for being far easier to clean than straw lids
  • Slim 16 oz profile fits backpack side pockets while holding a full school day of water
  • Top-rack dishwasher safe with fully removable parts

Where it falls short

  • walmart.com verified-purchase reviewers warn the spout can pop open if the lid isn't fully twisted closed
  • r/PlasticFreeLiving notes some water escapes when stored upside down — not perfectly leak-proof
  • Not rated for hot liquids, unlike some adult Thermos products
  • Wide-spout chug requires a kid old enough to drink without tipping too aggressively

Across the reviews

Synthesis · not our verdict

Wait — preschool would suggest the 12oz. Let me reconsider. Across the reviewers we read, the Thermos Funtainer 16 oz with wide spout lid is the consensus pick for the kid who has outgrown a straw bottle. r/Mommit and r/moderatelygranolamoms threads explicitly point to the 16 oz Funtainer as the next step up from the 12 oz straw version, and target.com verified-purchase reviewers praise the slim profile that fits side backpack pockets while still holding enough water for a full school day.

The wide-spout lid is the distinguishing feature. thermos.com user reviews and walmart.com verified-purchase reviewers repeatedly call out that the absence of a straw makes the bottle dramatically easier to clean — no narrow tube to scrub, no silicone straw to replace, fully dishwasher-safe disassembly. r/PlasticFreeLiving notes it's decently spill-proof but not perfectly so: turned upside down for any length of time, a small amount of water can escape.

The most-cited real-world con, raised in walmart.com reviews, is that the pop-up spout can release if the lid isn't fully twisted closed — one reviewer specifically flagged this as 'opens easily if not fully closed.' For older elementary kids who can manage a chug spout and value easier cleaning over leak-proof guarantees, it's the strongest option in this group.

Key specs

Source: Amazon listing
Stays Cold
THERMOS vacuum insulation technology keeps drinks cold for up to 12 hours. Our kids water bottles are built so their drinks are as cool on the inside as they look on the outside. Not for hot liquids
Durable For Daily Use
High quality 18/8 stainless steel construction is built to handle drops, dings and assorted roughhousing. You can pop your FUNTAINER water bottle in the dishwasher, though washing by hand is recommended
Kid-Friendly Design
Choose from a variety of fun colors or patterns! This 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
Covered Spout
Push button lid covers the spout
Protect What You Love
This THERMOS KIDS gear is made with durable, dishwasher safe materials meant to keep lunch and drinks how they like them. The lunchtime puzzle is officially solved

What customers say

2 verified voices
Pros--fun to drink out of. Holds more water. All silicone and stainless steel. No exposed mouth piece. Super pretty. Better insulation than ...
Supportingvia r/moderatelygranolamoms
funtainer is better quality than the 10-oz. bottle, but the 10-oz. bottle is a better size for a younger toddler, but by 3 just used the ...
Supportingvia r/moderatelygranolamoms

Trust tier reflects our editorial assessment of the source, not the individual quote. Hover for the rationale. See how we tier sources →

Video review

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THERMOS FUNTAINER 16 Ounce Water Bottle Review” · YouTube

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