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Bamboo Jar Lids — Wide & Regular

Style & Function Unite.

You'll wish there were no doors on your pantry. Seriously, these wood tops are so much better looking than the rusty, banged up metal tops we all have piles of in a forgotten bin. And they work. They'll keep the air out of your wide and regular mouth jars thanks to a food-safe silicone seal that circles the bottom. They look great in your cupboard or shelves, but they can also be used in the fridge or freezer. And they're not just for canning jars, they'll also fit many popular brand jams, nut butters, and pasta sauce jars.

P.S. Not saying the wide mouth will fit your coffee mug, but it fit our shop mugs! In fact, it's sort of fun to try them on various cups and mugs and wine glasses. You'll want a bunch of 'em. 


  • Zero-waste
  • Renewable materials
  • Safe for people & planet
  • Plastic-free
  • Compostable (silicone can be repurposed)
  • Woman-owned Company and also a 1% for the Planet partner


Plastic lids, and worn out canning jar lids.

Size: Wide mouth is approx. 3.375"; Regular Mouth is 2.75" 
Note that the interior or bottom part of the lid is smaller and wrapped with silicone so that it fits a variety of lids. 
Care: Do not place in microwave or dishwasher, hand wash with a damp cloth and let dry before using again. 

Made from sustainably sourced FSC bamboo and food-safe silicone.

While this product is made in China, we are confident in its production because this woman-owned Chicago business is led by a woman who spent 10 years in China, working with manufacturers who share her commitment to people and planet. 


Compostable. Remove the silicone ring and turn it into a new silicone product. You can find kits on line.

From Zefiro: It’s not about being perfect. Nobody is. It’s about being conscious that our actions matter. What we buy matters. What we waste matters. What we send to the landfill matters. What ends up in our oceans and ends up in our fish, matters. Every small step we take, makes a difference.

We’ve all become aware that we need to recycle but we need to start shifting our perspective to reducing and reusing before we think about recycling!
That's why Zefiro's mission is to help us reduce and reuse by offering products that are free of unnecessary packaging, minimize single use waste and are safe for both us and the planet.  

Customer Reviews

Based on 1 review
Cody’s Aunt (Pittsford, US)
Pretty and Practical

We love these bamboo tops!
We are replacing the rusty lids and rings of our Ball jars with these lids for our dry goods. They are prettier, made from renewable bamboo, and seem to be air tight.
We aren’t sure that they would be leak proof so haven’t tried them with liquids.
I’m so glad we found these at What’s Good!

It makes us smile to know you love these tops. We do too. Just last night we stored homemade salad dressing in the fridge with these, so fluids are okay. That said, not sure you'd want to travel too far down a bumpy road unless you put them in a cup holder or secured them in some other way so they don't tip over. Thank you so much for taking the time to comment!