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Quad
4 pack
A mycelium-based earplug solution offering 20dB noise reduction, exceptional comfort, and full home-compostability.
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In stock. Next day delivery available.
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Key Benefits
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Offers 20dB sound reduction with balanced clarity.
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Uses 100% lab-grown mycelium and contains no plastics.
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Moulds naturally to the ear for long-lasting comfort.
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Fully home-compostable and free from plastics.
GOB's Quad is a truly compostable earplug made entirely from lab-grown mycelium, offering comfort, clarity, and peace of mind without harming the planet. With 20dB of consistent, balanced sound reduction, it softens disruptive noise across all frequencies—whether in hotel rooms, flights, gyms, or at live shows—without muffling important sounds.
Quad’s mycelium foam shapes to the ear like memory foam, ensuring a secure, pain-free fit that stays in place. Unlike synthetic plugs, Quad breaks down completely after use, returning nutrients to the soil with zero microplastics or toxins. Quad delivers chemical-free, body-safe hearing protection that respects both personal health and environmental impact.
GOB was born with a mission to transform everyday wellness through nature-led innovation and conscious design. Founded on the belief that small choices create meaningful change, the brand reimagined the humble earplug using lab-grown mycelium instead of petroleum-based materials. Their compostable earplugs tune sound without chemicals or plastics, breaking away from the billions of disposable plugs that harm people and the planet each year. By combining biology, engineering, and long-term environmental thinking, GOB offers a regenerative alternative crafted for comfort and responsibility – helping you protect your ears while caring for the world around you.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
STEP 01: Position Inside Ear
Place the earplug gently at the entrance of your ear canal, keeping it aligned for a natural fit. Do not pinch or roll.
STEP 02: Place Finger On Outer End
Hold the earplug steady, pressing your thumb against the flat edge to guide it into place.
STEP 03: Push Until Secure
Press forward until the earplug sits flush with your ear, creating a comfortable and secure fit.
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Frequently asked questions
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
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Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The Discovery
Expert Validation
Community Testing
The Discovery
Expert Validation