Oberni Tritan Sippy Cup 270ml / 9oz (Green) – Weighted Straw, Leak-Proof Spout, 3-Pack
Product description
The essentials
If you’re trying to move a baby from bottles to something more cup-like, the Oberni Tritan Sippy Cup is aimed at making that transition feel less dramatic. The big idea is that it’s designed to let little ones drink in different positions (standing, sitting, or lying down) thanks to a weighted straw that moves with the liquid.
It’s also built around a spout that aims to be genuinely spill-friendlier: a V-shaped valve opens when your child’s lips touch it, rather than being permanently gappy. On paper, that combination (weighted straw + double-sealing style spout) is exactly what you want if you’re fed up with cups that leak the moment they tilt.
That said, no sippy cup is magic. If your child bites down hard on the straw, or if the lid/spout isn’t fitted quite right, you could still get drips. It’s a “designed to help” product rather than an absolute mess-proof guarantee.
Key features that matter in day-to-day use
Where this cup earns its place is in the mechanics of drinking. The weighted straw is meant to shift with the liquid, so your baby can tip and sip without needing to hold the cup perfectly upright. For parents, that usually means fewer frustrating moments of “wait, it’s empty” when it hasn’t actually drained.
The spout is also the other highlight. The description points to a V-shaped valve that only opens when touched by your tot’s lips. In practice, that tends to reduce leaks in normal handling—especially if the cup gets knocked or carried around.
You also get a flip-top lid that’s described as an anti-spill option, plus a removable carrying strap for day trips. It’s the sort of feature set you’d typically look for when you want a cup that can live in bags and not immediately turn into a damp disaster.
At-home and on-the-go transition cup
This is positioned as a trainer cup (270ml / 9oz) intended to support the transition from bottle or breast to cup. There’s even a piggy pattern on the streamlined bottle-style body, which may sound minor, but kids can be surprisingly picky about what they’ll actually accept.
A practical way this could play out: you’re in the kitchen with your child sitting at the table—cup on its side for a second while you adjust the bib—then they take a sip without you having to keep the cup perfectly upright. Or, when you’re out, the flip-top lid and carrying strap are there so you’re not juggling an open cup and a wet bag.
What you’ll notice when cleaning it
Cleaning is one of the real buying factors for sippy cups, and Oberni has designed this one around that. The wide-neck cup parts are removable, and the handle, weighted straw, and spout can be disassembled and reassembled. The description also mentions sterilising and cleaning the parts.
For busy households, that matters because sippy cups can get sticky around seals and hidden corners. Being able to take the pieces apart properly is usually a deal-winner, even if it takes a few extra minutes at first.
Tech specs
- Type: Sippy cup / baby water bottle
- Capacity: 270ml / 9oz
- Pack size: 3-pack
- Colour: Green
- Material: Tritan (BPA-free, non-toxic, Eastman Tritan mentioned)
- Straws: Weighted straw
- Spout: V-shaped valve, only opens when lips touch
The limitations to keep in mind
The leak-proof claim is fairly strong on the surface, but it depends quite a bit on correct assembly and normal use. If the cup is not sealed properly after cleaning, or if the spout/lid aren’t aligned the way the design expects, it may still drip.
Also, “drink in any directions” is about the straw and valve design helping the liquid flow. If your child doesn’t have the coordination yet, they may still spill during the learning phase—so it’s not a substitute for supervision, especially early on.
Is it worth it?
It’s worth buying the Oberni Tritan Sippy Cup in this 3-pack if you’re looking for a transition cup with a weighted straw and a spout that’s meant to open only when your child drinks. The detachable parts also suit parents who actually want to clean rather than just rinse.
You may want to skip it if you’re expecting a fully hands-off, zero-drip solution regardless of how the lid is handled, or if your child strongly struggles with straw cups (every child’s different in the first weeks). If you’re after something that’s simpler and less mechanical, you might find other styles easier—but you’ll likely trade away some of the “tilt and sip” convenience.
Mini FAQ
How does the weighted straw help?
The weighted straw is designed so it moves with the liquid in the cup, which should help your baby sip even when the cup isn’t perfectly upright.
Is the spout truly leak-proof?
It’s designed to be leak-resistant using a V-shaped valve that opens only when the child’s lips touch it. In normal use, that should reduce spills, but correct fitting after cleaning still matters.
Is it easy to clean?
Yes, the description says all parts are removable and can be disassembled and assembled again for sterilising and cleaning.
What’s it for?
It’s meant as a trainer cup to help children (6+ months mentioned) move from bottle/breast to drinking from a cup.
What’s included in the 3-pack?
You get three Oberni Tritan sippy cups in the stated colour (Green), as a bundle.