THERMOS FUNTAINER Water Bottle with Spout, 16oz
Amazon's Choice. The school-classic stainless bottle that keeps drinks cold and fits in backpacks without overpacking.
Updated
- Amazon's Choice
- 16 oz capacity, stainless steel vacuum insulated
- Keeps drinks cold up to 12 hours
- Push-button lid with integrated carry handle, dishwasher safe
Best For / Not For
Best for
- School-age children who need cold drinks to stay cold through the day
- Parents who want an insulated bottle without the YETI price
- Kindergarten through elementary school use where backpack sizing matters
Not for
- Very young children -- the push-button lid may be easier to accidentally open at toddler age
- Anyone who needs the lid to stay securely closed under active conditions
- Hot liquids -- not rated for hot beverages
Key Details
The School-Day Cold Retention Case
Thermos has built the Funtainer's reputation around one core claim: keeping drinks cold for hours in a school environment. Thermos rates the vacuum insulation to keep drinks cold for up to 12 hours, which covers a bottle sitting in a backpack or locker from 7am until 3pm. For parents sending kids to school with water or a cold drink, a non-insulated plastic bottle that goes lukewarm by lunch is a real problem the Funtainer solves.
The 16oz capacity is notably larger than the YETI Rambler Jr.'s 12oz, which suits older elementary school kids who drink more water through an active school day. The integrated carry handle is a practical detail for a bottle that goes to and from school every day.
The Push-Button Lid Trade-Off
The lid is the trade-off worth flagging. A push-button spout is less secure than a straw cap when a bag is packed tight and jostled, because pressure on the button can open it. The Funtainer's lid is listed as leak-proof when closed, so the risk is accidental opening rather than inherent leakage.
Parents who need a more secure lid should consider the YETI Rambler Jr.'s straw cap, which locks more positively, or the Contigo Aubrey's spill-proof valve design. The Funtainer remains a strong school bottle for buyers who are careful about ensuring the lid is fully engaged before putting it in a bag. Thermos has 120 years of heritage in the category, and strong feedback from a large number of buyers backs the bottle overall.
Pros and Cons
Pros
- Amazon's Choice with strong buyer feedback
- Insulated stainless steel keeps drinks cold up to 12 hours
- 16oz size is right for school-age kids without being too heavy
- Dishwasher safe, though Thermos recommends hand washing
- Cupholder-friendly design for car and desk use
Cons
- Push-button lid is not as secure as the YETI's straw cap under active or jostled conditions
- More expensive than plastic alternatives while not reaching YETI's premium construction level
- Not for hot liquids -- parents who want a thermos for warm drinks need a different product
Bottom Line
Buy the Thermos Funtainer if insulated cold retention is a priority and you want Amazon's Choice-level buyer confidence without the YETI price. Strong feedback from a large number of buyers, plus vacuum insulation Thermos rates to keep drinks cold up to 12 hours, makes it the strongest mid-range school bottle in this comparison. Confirm the lid engages fully before putting it in a backpack.
Check current price