Kids Glass Mason Jars 12oz with Sleeves & Lids - Spill Resistant

In this review of the Kids Glass Mason Jars 12oz set, the bottom line is simple: these jars are for families who want a durable, nonplastic cup that works for smoothies, snacks and everyday drinks. The reviewer found them ideal for toddlers and older kids who can handle a little weight, praising the glass construction and silicone sleeves as the single biggest reason to buy. The set balances safety, easy cleaning and thoughtful lids and straws, making it a solid replacement for disposable or plastic sippy cups in many households.

Key Features

• Original 12oz size: The 12oz capacity is well matched to small hands but large enough for smoothies or a generous serving of juice.
• Silicone sleeves: The protective sleeve cushions the glass against everyday bumps and makes the jar easier to grip for little fingers.
• Two lid styles: A spout lid with silicone straw and a leak-proof storage lid give flexibility for drinking and food storage without extra containers.
• Built-in straw stopper: Each silicone straw has a stopper to prevent it from slipping through the spout and getting lost during use.
• Dishwasher and microwave safe: Glass and food grade silicone make cleaning simple and the jars safe for reheating without removing the sleeve.

Who It's For

These jars are best for parents who want to avoid plastic sippy cups and prefer a reusable glass option that still has kid-friendly features like sleeves and straws. They suit children who are ready to handle a slightly heavier cup and families that value easy cleaning and versatile use for drinks and small snacks.

They are less suitable for very young toddlers who need completely spill-proof solutions or for caregivers who need a fully leakproof container when carried upside down, since liquid can escape through the straw when inverted.

Pros & Cons

Pros

• Nonplastic glass construction gives a high quality feel and avoids lingering tastes or odors.
• Silicone sleeves add protection and a secure grip for small hands.
• Easy to disassemble and clean, and safe for dishwasher and microwave use.
• Includes two lid types and wide straws suitable for smoothies and thicker drinks.

Cons

• Not completely leakproof when tipped upside down because straws do not use a valve.
• Glass can still break if dropped hard despite the sleeve, so supervision is advised for very active toddlers.

Specifications

Our Verdict

These 12oz glass mason jars are a thoughtful, eco-friendly choice for families ready to move away from plastic cups. They deliver good value through durable materials, practical lids and easy cleaning, and are especially useful for smoothies and everyday drinks when spill resistance and grip are priorities.

Frequently Asked Questions

Are these jars dishwasher safe?
Yes, the jars and silicone sleeves are dishwasher safe and the set is also microwave safe.

Do the straws get lost?
Each straw has a built-in stopper to keep it from sliding through the spout, reducing the chance of losing straws.

Are they fully leakproof?
The storage lids are designed to be leak resistant for food, but when using the straw and spout lid the jars are not fully leakproof if tipped upside down.