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Silicone Sleeve for Regular Mouth Half Pint 8oz Mason Jars


We love to use glass jars instead of plastic cups for our kids’ beverages, but there is always the worry that they will end up broken on the ground.

These silicone sleeves for Regular Mouth Half Pint (8oz) jars add grip and padding, and they also insulate.

Whether you call it a Koozie, a Kozie, a Coozy, a Cozy, or just an insulating sleeve, it’s perfect for protecting your glass jar from breakage and your hand from cold or heat.

Made of food grade silicone rubber, these sleeves are dishwasher, freezer, and microwave safe! Silicone is a safe, green, non-plastic (BPA free) material for food use that does not leach any chemicals.


Our kids use most of the half pint jars that are always littering the kitchen, but I also use them to drink coffee and cocktails.

Use a different color for each family member, and stop wondering which beverage cup is yours!

Microwave safe means you can heat up your beverage without removing the sleeve. Or take out a frozen jar of food, put a koozie on it, and heat it up.

Since they don’t touch your beverage, I often just rinse them, but they are also dishwasher safe. You can leave them on the jar, but I find that water gets trapped so I prefer to separate them to clean the jar.

They have a hole in the bottom to make getting them off easier. Our first generation of this size did not have a hole in the bottom.

You could also use one to block sunlight or prying eyes from the contents of your jar.

Great for kids and adults!

Choose Color

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Mason Jar Lifestyle

Customer Reviews

Based on 22 reviews
Kathleen (Lascassas, TN, US)

The silicone sleeve and silicone drinking lid were a gift for my smoothie-drinking child. A big hit! They'll be visiting the site for more mason jar goodies.

P MARTIN (Santa Monica, CA, US)

Perfect size for carrying water in my purse

Becky (West Bend, WI, US)
Great for little hands aka grandkids

I will let u know after next week when my grands visit us. They have plastic supply cups that Inwant to replace. I tried it with the sippy top and works for me in my regular pint ball jar.

Bethany Novak (Berea, OH, US)
Great baby food jar sleeves

I use these for baby food storage exclusively. They work great on protecting the jar and my hands from the heat. I love that they work for that, sippy cups, bottles, and every other kitchen use.

Renee Barr (Woodstock, IL, US)
Good stuff!

Thanks for the wonderful order.

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