Runner-Up: Hydro Flask Kids Wide Mouth 20oz
Hydro Flask narrowly trails Owala for top spot, excelling in insulation and younger-kid-friendliness while sacrificing some versatility.
Why Hydro Flask Scored High
Lead-Free Pioneer: Hydro Flask announced in 2012 they created an innovative vacuum-seal process that eliminates lead entirely. They've been lead-free for 12+ years—longer than any competitor. Independent testing by Lead Safe Mama confirms zero lead detection.
Superior Insulation: In our ice water test:
- Hour 6: 38°F (vs Owala's 41°F)
- Hour 12: 44°F (vs Owala's 52°F)
- Hour 24: Still cold at 54°F
If keeping drinks icy-cold all day matters (especially summer sports), Hydro Flask wins on insulation.
Perfect for Younger Kids (5-7): The straw lid requires minimal coordination—just sip. No mechanisms to figure out. Our kindergarten testers (ages 5-6) preferred Hydro Flask's simple straw over Owala's dual-action lid.
Testing Results
Durability: Passed all drop tests but showed minor denting after 50 drops (cosmetic only, no function loss). Owala's coating resisted dents better.
Leak-proof: 100% when straw lid properly closed. However, the straw lid is a separate purchase ($10-15)—bottle comes with standard screw-on lid.
Cleaning: Dishwasher-safe straw lid with more crevices than Owala. Requires detail cleaning weekly to prevent mold in straw valve.
Why It's Not #1
Weight: Noticeably heavier than Owala when full (20oz capacity vs 16oz, plus thicker steel). Smaller kids (ages 5-7) sometimes struggled carrying full bottle.
Single-Use Design: Just a straw—no "chug" option like Owala. Older kids (10-12) found this limiting for sports.
Price + Extras: $29.95 for bottle + $12.95 for straw lid = $42.90 total. Owala's $24 includes everything.
Straw Cleaning: More maintenance than Owala. The silicone valve traps liquid, requiring brush cleaning 2-3x/week.
Best For
- Younger kids (ages 5-8) who need simple, easy-sip access
- Maximum insulation needs (all-day cold drinks)
- Long-term investment (lifetime warranty, extremely durable)
- Larger capacity (20oz vs Owala's 16oz for older/bigger kids)
The Bottom Line
Hydro Flask is the safest, coldest, most durable bottle we tested—but the straw-only design and premium price ($43 with accessories) make Owala's versatility and value more appealing for most families.
Choose Hydro Flask if you have younger kids (under 8) or need maximum insulation.
