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| Express Delivery (Standard Parcels) | Delivered within 1-2 working days |
| Extra-Large Parcels (Signed for) | Delivered within 3-5 working days |
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MATERIAL: The durable tumblers are made of plastic and stainless steel with silicone straws. Long-lasting and BPA free, the lids and plastic tumbler are top rack dishwasher safe, while the stainless steel tumbler should be hand washed. Do not microwave.
SIZE: The set contains two tumblers and one additional sipper and straw. The plastic tumbler has a capacity of 15 ounces and the double-wall stainless steel tumbler has a capacity of 12 ounces.
LEAK-PROOF DESIGN: Each silicone straw has a built-in valve that allows liquid to flow when drinking and prevents accidental spills when the tumbler is tipped over. The straw is also soft and comfortable for kids to drink from.
AT HOME OR ON THE GO: The straw tumblers are suited for travel, since they won’t leak while keeping drinks easily accessible. They’re also great for drinking beverages at home without worrying about spilling on papers or electronics.
LIFESTYLE: Zak Designs drinkware makes hydration a fun part of your daily routine! These cute tumblers are great for kids just graduating from sippy cups. The tumblers are fully reusable–no more disposable cups–and you can choose the material that best suits the situation.

High quality, tough to suck.
The quality of the bottle is fantastic and itâs leak proof. The only issue is that a young child may have difficulty getting anything out at first. You really need to suck with force to get flow. Not great for a very young child, but certainly great for toddlers.
Favourite kids cup
Love these cups! 100% leakproof and good flow through the straw. Good for both our toddlers and older kids.
Robuste
Robuste
It does leak.
My little LOVES these cups but unfortunately they are not leak proof.
Don’t leak
I just love these…they don’t leak and easy to clean.
Not bad
These have very cute designs and are made well. Definately good quality. Decent value for your money as well.I did have an issue with leaking since it is a straw and my toddler had a hard time sipping from them. They are harder to clean because of the straw but a good learning cup
Great for kids.
Love using these. Only downside is that on the stainless steel tumblers, the design wears off. We only hand wash these, so itâs not like weâre using harsh dishwasher detergent. I love the easy clean-ability of these. Very good leak resistant type of cups.
Durable but hard to open
So we have 3 of these and have had them for over a year now.Pros- super durable. No cracks or spills even after lots of toddler abuse-they donât spill (unless straw is bent)- nice to have option of light plastic and insulated metal.- dishwasher safe-super easy to clean (no problems with mold like other toddler water bottles)Cons- designs are not dishwasher safe.. all the patterns washed off quite quickly- the rubber ring thing on exterior of lid comes off over time and makes them IMPOSSIBLE to open. I have stopped using them because I cannot open them without a full on clamp. And if you donât do them up tight then they spill⦠it was not an issue for the first 6 months when the rubber rings were attached but now itâs a nightmare to use them.
I was in the market for some toddler cups since my little one needs to transition away from bottles. I bought a couple different types but these Zak cups are BY FAR my favorite! They were highly recommended by a lot of parents and specialists on TikTok.The price is fair for the quality of the materials. I got the set with a steel tumbler and a plastic cup so I could compare (and avoid plastic when possible). They are both high quality, super easy to wash, are dishwasher safe, and the designs are exactly as pictured.My daughter does really well with these, and the straw top is a soft silicone so she gets to teethe on it too. I usually don’t add the plastic straw because my kiddo likes to tip the cup back like it’s a bottle. These cups are pretty leak-proof! She can spill an occasional drop or two here and there but it’s no different than how much she would spill with her bottle.The only thing that I can call a con is the fact that these don’t have handles, which I think would make it easier for my kiddo to hold, but she manages fine without them for the most part. Also, the steel tumblers are heavy and could do some damage if dropped on a foot or flung into a wall (she’s in a throwing stage) so we only use them with close supervision.If you are looking for a cup to transition your baby away from bottles, I would definitely recommend these! So far, these are my daughters (and my) favorite cup. I have already bought 2 more sets.Hope this helps!
I love the design of the bottles and how thereâs two of them for different functions. The thermal cup is great for maintaining the milk from warming up. The other bottle is great for water and juice( at least for my preference of use). Itâs a great size for my toddler as well, it brings an extra straw and itâs a great transition from the bottle to sippy cup. It can be a bit leaky if you shake too hard but not enough where youâll freak out. Overall happy with this purchase.
Quality good, size perfect, easy to hold
I did so much research to make sure her âupgradeâ cup didnât have a valve or weighted straw. Kept coming across these. Lots of other parents recommended them. Iâm too poor to have a dishwasher and Iâve had this cup for about a week. She still is breastfeeding so mostly water in. She only uses it while in her highchair. So yes itâs been dropped more than once. I wash it with hot water to kill all the bacteria and dish soap. All the designs are coming right off, which is wild because I grabbed a âcheaperâOne instead of like the princesses. I was thinking of getting her the princess one soon but itâs going to look terrible after a day of her using it. SO disappointing. Works great for a up. Looks terrible
Easy to clean but the stainless cup is still a bit heavy for my little one. Cute designs and soft straw was a plus.