Kids 12oz Glass Mason Jar Cups - Durable Mason Smoothie Set

In this review the Elk and Friends 12oz glass mason jar cups are judged as a practical, everyday cup for toddlers and young kids who are moving from sippy cups to open drinking. The single biggest reason to buy is the combination of a true glass jar and protective silicone sleeve that makes a familiar, sturdy drinking vessel feel safe and accessible for little hands. The set balances convenience for parents with child-friendly features like a wide straw for smoothies and two lid styles for drinking and storage.

Key Features

• Original 12oz size: The 12oz capacity is compact enough for toddlers yet large enough for morning smoothies or milk, making portions manageable for children.
• Silicone sleeve protection: The soft sleeve cushions the glass against bumps and provides a grippy surface for small hands to hold securely.
• Two lid options: A spout lid with silicone straw encourages independent sipping while a leak resistant storage lid doubles as a snack or leftovers cover.
• Wide silicone straw with stopper: The straw is wide enough for smoothies and has a built-in stopper so it does not easily disappear during play.
• Safe materials and easy care: Made from glass, food grade silicone and BPA-free plastic, the jars are microwave and dishwasher safe without removing the sleeve.

Who It's For

The jars are well suited for parents of toddlers and preschoolers who want a real glass option that still survives everyday family life; the silicone sleeve and lightweight 12oz jar make them easy for little hands to manage. Families who enjoy smoothies, milk, juice or who need small food storage jars will find the dual lids particularly useful.

Parents seeking a truly spillproof, toddler cup with valve-secured straws should look elsewhere; while the stopper reduces stray straws and the storage lid is leak resistant, the straw-equipped spout is not sealed against being tipped upside down and may leak if inverted.

Pros & Cons

Pros

• Real glass construction offers a non-porous, taste-neutral cup that cleans well in the dishwasher.
• Protective silicone sleeves reduce breakage risk and add a secure grip for toddlers.
• Two lid styles increase versatility for both drinking and food storage.
• Wide silicone straws make smoothies easy and the built-in stopper prevents losing the straw.

Cons

• The jars are not fully spill-proof when tipped with the straw inserted, so expect possible leakage if inverted.
• Durability reports vary; while sleeves help, glass can still break if dropped hard.

Specifications

Our Verdict

The Elk and Friends 12oz glass mason jar set is a sensible buy for families who want the safety and cleanliness of glass plus kid-focused design touches like sleeves, wide straws and double lids. It offers good value for those prioritizing material quality and versatility, but parents seeking fully leakproof cups should be aware of the straw's limitation when inverted.

Frequently Asked Questions

Are these jars dishwasher safe?
Yes, the jars, lids and silicone sleeves are dishwasher safe and do not need the sleeve removed.

Will the straw fall out?
The silicone straw has a built-in stopper to reduce accidental removal, but it is not a sealed valve so it can still leak if tipped upside down.

Are the materials safe for kids?
Yes, the products are made from glass, food grade silicone and BPA-free plastic and meet standard safety testing.