YETI Rambler Jr. 12 oz Kids Water Bottle
The YETI Rambler Jr. 12 oz Kids Water Bottle holds 12 oz, per YETI. A 12 oz double-wall vacuum insulated stainless steel kids bottle with a straw cap, aimed at ages 3 and up.
- 12 ozHolds
- Comes outStraw
- YesInsulated
- 3+Age
How the Rambler Jr. 12 oz Kids Water Bottle stacks up
Against the 34 insulated and stainless kids' cups we track. The shaded band is where the middle half of them fall; the dot is this one.
Within the typical range for insulated and stainless kids' cups (10 oz to 15 oz).
What sets the Rambler Jr. 12 oz Kids Water Bottle apart
Measured against the 34 insulated and stainless kids' cups we compare, from each maker's published specs.
- Capacity: 12 ozin the middle half of the 28 insulated and stainless kids' cups that publish it (10 oz to 15 oz)
Next to its closest matches
- Owala Kids' TumblerNext to it, the Rambler Jr. 12 oz Kids Water Bottle is 3 oz less capacity.
Cup at a glance
As YETI lists it.
| Drink style | straw |
|---|---|
| Capacity | 12 oz |
| Leaks (maker's words) | leakproof when closed |
| Insulated | Yes |
| Body material | 18/8 stainless steel |
| Age on the label | 3+ |
Parts and cleaning
| Straw comes out | Yes |
|---|---|
| Dishwasher (maker) | Yes |
Listed features
- Maker lists caps, gaskets and straw as separate cleaning parts
- Maker gives a clear age and hot-drink warning
Worth checking
- No cold-hours figure given
- Straw cap not for hot or carbonated drinks
Where to buy the Rambler Jr. 12 oz Kids Water Bottle
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
- Teeth and cups: see the AAP's first tooth page. Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| YETI Rambler Jr. 12 oz Kids Water Bottle | |
|---|---|
| Type | Insulated or stainless kids' cup |
| Capacity | 12 oz |
| Drinks from | straw |
| Spills | "leakproof when closed", per the maker |
| Straw comes out | Yes |
| Material | 18/8 stainless steel |
| Insulated | Yes, per the maker |
| BPA-free | Yes, per the maker |
| Dishwasher | Yes, per the maker |
| Age | 3+ |
| Maker's use notes | Do not use the straw cap with hot, carbonated, or pulpy beverages or for storage of food or perishables. |
Compare the Rambler Jr. 12 oz Kids Water Bottle with
How each closest rival differs from the Rambler Jr. 12 oz Kids Water Bottle, from the makers' specs.
- OwalaKids' Tumbler15 oz
- 3 oz more capacity
- b.box12oz insulated water bottle for kids$2612 oz$26.95Compare side by side
- Zak DesignsKelso Insulated Tumbler, 12 oz.$1412 oz$14.99Compare side by side
- Skip HopSpark Style Stainless Steel Straw Bottle12 ozCompare side by side
Rambler Jr. 12 oz Kids Water Bottle: questions answered
From YETI's published specs, last checked 2026-11-11.
Is there lead in the YETI Rambler Jr. 12 oz Kids Water Bottle?
The maker doesn't make a lead statement on its product page.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
More insulated and stainless kids' cups
- LaloStainless Toddler Cup$1712 oz$17.99
- CamelBakEddy+ Kids 12 oz Bottle, Insulated Stainless Steel12 oz10 hr cold
- MunchkinStay Cool Water Bottle$912 oz$9.99
- ReduceColdee 14 oz Kids Tumbler14 oz18 hr cold
- Dr. Brown'sMilestones Insulated Straw Cup, 2-Pack10 oz
- PuraKiki 9oz Insulated Kiddo Straw Bottle9 oz12 hr cold
Where these specs come from
Last checked 2026-11-11. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.