BrüMate Leap 12oz 100% Leakproof Kids Tumbler with Handle a
✅ PROS
- Genuinely leakproof — survived upside-down shakes and backpack tosses in testing
- 12oz capacity hits the sweet spot for 3-7 year olds; not too heavy when full
- Silicone handle is comfortable for small hands and easy to grip when wet
❌ CONS
- Straw requires firm suction; younger toddlers may get frustrated
- No insulation — drinks warm up fast, so don't expect ice retention
- Lid disassembly for cleaning is fiddly; mold can hide in the gasket if you rush
The Verdict
If you’ve bought more than two kids’ water bottles, you know the drill: “leakproof” usually means “leaks when it’s sideways in the car seat.” The BrüMate Leap 12oz claims 100% leakproof, and here’s the thing — it mostly delivers. But there are tradeoffs you need to know before you hand this to your kid.
What you actually get
The box contains the tumbler body, a straw lid with a flip-top spout, a silicone handle, and a cleaning brush. That’s it. No extra straws, no spare gaskets. The 12oz capacity is the standout spec — it’s small enough for a 3-year-old to carry but big enough to hold a full serving of milk or water. The handle is chunky silicone, not the flimsy plastic loops you see on cheaper cups.
Real-world performance
I tested this thing like a parent, not a marketer. Filled it with water, shook it vigorously, tossed it in a backpack, and left it upside down on a towel overnight. Result: bone dry. The lid’s locking mechanism is the real deal — when it’s clicked shut, nothing comes out. One Amazon reviewer put it simply: “I’ve thrown this in my diaper bag with juice and it hasn’t leaked once in three months.”
The drinking experience is where it gets interesting. The straw requires noticeably more suction than similar cups. A 4-year-old handled it fine, but a 2-year-old gave up and just chewed the spout. That’s a consideration if you’re buying for a younger toddler.
What buyers consistently praise
The leakproof claim is the headline, and it holds up. Parents also love the handle — it’s genuinely comfortable and doesn’t pinch. The 12oz size gets repeated mentions: “Perfect size for preschool — fits in the side pocket of every backpack I’ve tried.” The flip-top lid keeps the straw clean when not in use, which is a small detail that matters when the cup lives in a diaper bag.
Where it falls short
Here’s the honest stuff. First, there’s zero insulation. This is a single-wall tumbler. Fill it with ice water and it’s lukewarm within an hour. If you need cold drinks for long car rides or outdoor days, this isn’t your cup — literally.
Second, cleaning is a chore. The lid comes apart into four pieces: flip top, straw, gasket, and base. If you don’t fully disassemble and dry every piece, you’ll find pink mold in the gasket within a week. Several reviews mention this exact issue. The included brush helps, but you have to use it every single time.
Third, the straw suction issue again. It’s not a dealbreaker for most kids, but if your child is on the younger side or has weaker oral motor skills, they’ll get frustrated.
Who should buy this
This is for parents who are done with leaky cups ruining diaper bags and car seats. It’s ideal for preschool-age kids (3-6) who can handle the suction. It’s also great for daycare where cups get thrown, dropped, and left upside down in cubbies. If you’re a family that needs insulated cups, look elsewhere — this isn’t that product.
FAQ
Is it actually 100% leakproof? Yes, when the lid is properly locked. I tested it upside down and shaking for several minutes with zero leaks. But the lock must be fully engaged — a partially closed lid will leak.
Can my 18-month-old use this? Probably not. The straw requires firm suction that younger toddlers may not have. I’d recommend this for 3 years and up.
Does it fit in standard car seat cup holders? No. The 12oz size is deliberately compact, but the handle makes it too wide for most cup holders. It’s designed for backpacks and lunch boxes, not cars.
The Verdict
Buy it if: You’re tired of leaky cups and need something that survives the chaos of preschool, diaper bags, and rough handling. The leakproof claim is legit, and the 12oz size is practical for little hands.
Skip it if: You need insulated drinks, have a toddler under 3, or don’t want to disassemble a four-piece lid every night for cleaning.
Rating: 4.2/5 — A genuinely leakproof cup that nails the basics. The lack of insulation and fiddly cleaning keep it from being perfect, but for the core job — not leaking — it’s excellent.
Where to Buy
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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.