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Availability:
Only 10 left in stock, order soon!
Arrives
Friday, Sep 11
Size: Medium - SF3
Features
- A revolution in sound performance, with foam that expands at the perfect rate.
- Enjoy crisp, clear sound and comfort for an all-day immersive experience.
- Memory foam is a degradable material; each pair should last up to 4 weeks.
- Designed specifically for earbuds with a speaker diameter of between 3.3 - 4.3mm
- Available Sizes: Small, Medium, Large | Eartip Dimensions: S=11mm wide / M=12mm wide / L=13mm wide / Height for all sizes 10mm (Dimensions indicated are approximate and may differ slightly)
Description
The key to effective isolation and superior sound is a memory foam bud which expands slow enough so that it can be inserted in the ear before it expands back to normal size to allow it to create a perfect seal. Experience sound like never before with Sonicfoam memory foam earbud tips. Keep your headphones in while you run. The heat activated memory foam fits to your ear canal in a way that creates a more secure fit. Hear what you want. Block out the rest. Isolating ambient noise means you hear more of what you want. Be amazed at how good your headphones actually are. You will hear more. The sound will be richer, deeper and more immersive. Achieve higher levels of focus while you work or study by isolating yourself from the surrounding noise. Be productive anywhere.
Color: Black
Brand: SONICFOAM
Material: Hypoallergenic Polyurethane Memory Foam
Compatible Devices: with SF3 Various Earphones - (See Compatibility List)
Item dimensions L x W x H: 0.47 x 0.47 x 0.39 inches
Color: Black
Enclosure Material: Hypoallergenic Polyurethane Memory Foam
Compatible Devices: with SF3 Various Earphones - (See Compatibility List)
EU Spare Part Availability Duration: 10 months
Item Dimensions: 0.47 x 0.47 x 0.39 inches
Unit Count: 10 Count
Brand: SONICFOAM
Manufacturer: SONICFOAM
Item Type Name: replacement-earpads
Model Number: SF3 (see model list) / Medium (Ear size)
Mfr Part Number: SF30001MB
Warranty Description: Other
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Sep 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I am a purchasing consumer posting an honest review of the SF2-MEDIUM which I bought. I use the SF2-MEDIUM with my JBL T110. I receive a second set SF0-SMALL for providing user feedback. I use the SF0-SMALL on my Truthear Zero Red. [1/26/25] Easy 5 stars. I would not hesitate to buy these again. I bought the SF2 size in Medium for my JBLT110. Fit is perfect, they slide on firmly and do not fall off. Sound isolation is improved considerably. They feel like foam-roll hearing protection earplugs. They have much less "suction cup / vacuum" feel on my eardrums. The JBLT110 with factory silicone tips have a very pronounced 5~7 db treble boost above ~6K, that honestly sounds like nails on chalkboard to my ears. These sonicfoam tips help to tame that treble boost for an overall better sonic presentation. I am not new to in-ear monitors and foam roll type ear-tips. My first set of IEMs was a Sure E2C 15+ years ago and I have owned various models from various brands since.... Jays, Sony, Truth ear...etc. What's nice about these Sonicfoam tips is the foam expands slowly in my ears, so I can take my time inserting them. Its NOT like a beat the clock... quick before they re-expand kind of thing. [1/28/25] I received a second set as a favor for providing user feedback. This second set is a SF0-SMALL for my TruthEar Zero Red. The Zero Red is well known for having a HUGE sound output tube, almost 7mm diameter. The SF2 tip inside diameter is way too small. The SF0 fits the Zero Red perfectly. Not too tight and not too loose. They are very similar to the OEM foam tips, except the Soncfoam material expands much slower so I do not have to hurry/rush to insert them. As far as sonics and comfort go they are an exact match to the OEM foams. [2/20/25] After almost a month these foam-roll tips are still going strong. They do show very slight signs of wear, but nothing significant. They are maybe still a solid 95%, and they seem to have plenty of life remaining. I use the SF2-MED with my JBL T110 EVERY night to fall asleep listening to waves and rain forest sounds. I also use them during the day to listen to music and YT vids. I literally roll around and fall sleep ON THEM every night. No soreness or discomfort of any kind paired with the small JBLs. I have equally positive results with the SF0-SMALL on my Truthear Zero red. Although I don't use those nearly as often as the JBL T110. I will post a follow-up to this review if my opinions change.
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Reviewed in the United States on January 26, 2025 by G.S.F.
Size: Large - SF2
Finally found foam ear tips that fit my KZ ZS10 Pro X earphones without being loose around the headphone tip or inside my ear. I have large ear canals so these foam tips expand comfortably isolating external sounds giving my music a deeper bass sound than the original silicon tips, and no itch!. Best of all? the price, they're not as expensive as other brands. They also fit the JBL Vibe Beams, same fit and audio bass improvement, but just as all other earbud tips for these Bluetooth with a case, they don't fit properly, I have to remove them from the earbud so the lid closes properly to charge. Highly recommended.
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Reviewed in the United States on February 11, 2026 by David C.
Size: Medium - SF4
These are great earbud tips! I always prefer the memory foam because they seem to block more outside noise and isolate the sound from the buds. These fit my JBL Vibe Beam buds perfectly. And they made the sound quality better because the recessed mount puts the actual driver of the earbud closer to the ear. I was disappointed with the sound quality of my buds until I put these tips on. Will definitely buy again if I wear these 8 pairs out.
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Reviewed in the United States on July 28, 2026 by ToolSyv
Bought for my soundcore life A1 earbuds. I could not find a brand that sold flat/short memory foam earbud tips like Jlab's in bulk, and in one size. I bought these because they seemed popular. They fit on my earbuds. They don't fit into the earbud case (which is expected). When they go into my ears, they go deep into the ear canal. This creates unparalleled sound cancellation but it's also uncomfortable sometimes. The foam is fairly dense. And once it's been exposed to water or been used a few times, it doesn't stay compressed for long. The foam density and the short compression time means I need to quickly jam it into my ears. I ended up cutting the top part into a flatter, curved shape so that they could fit into my earbud charging case. I had to cut the tips because cutting them off at the base would make them unable to stay on. Fortunately they're cuttable. So now I don't have to worry about jamming the tips so deep into my ear, and it still cancels noise fairly well. Good enough to satisfy my sensory demands even if I'm not playing music. The cut earbud tips might look trashy but nobody has made a product that actually fit the dimensions I need at a reasonable price, so.... this product still gets 4 stars. These tips don't remain in my ear canal when I remove my earbuds, (like JLabs tips do) so that's a plus. I might end up switching to one of the brands that has multiple interior grooves though.
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Reviewed in the United States on April 15, 2026 by Amazon Customer
Size: Medium - SF3
A game-changer! As a former airline pilot, I've tried everything that you can stick in, on or over your ear to attenuate noise. I used Comply for years, and Sonicfoam completely blows it away! Superior noise attenuation, better fit, and stays in the ear better. I use foam tips for everything -- ear buds for music & podcasts, aviation headsets, and sleep devices like Ozlo and QuietOn. Sonicfoam almost completely blocks ambient sounds, while Comply lets some sound leak through. Also, among the best customer service of any company I've ever dealt. And a better price than Comply seals the deal!
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Reviewed in the United States on August 16, 2026 by Lenny Lee
These SF2s fit perfectly on my old Jaybird Freedoms and Monster TurbinePros. I looked a long time to find compatible replacements that fit correctly and was really pleased to find these. The foam is very soft and comfortable in my ear, provides excellent noise cancellation, and allows me to enjoy the fantastic sound quality of these two earbuds again. I’ve tried silicone and foam, and vastly prefer the material used in these because they conform so well to the anatomy of my ears, which silicone just cannot replicate. Also, excellent communication and customer service from the people at Sonicfoam. At about $1.50 per pair, I’m all in on these.
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Reviewed in the United States on July 15, 2026 by Miki
These fit the Tozo NC9 earbuds but are NOT compatible with the Tozo NC9 case. They keep the earbuds raised and prevent making contact with the charging pins. The case cover doesn't close. I do not recommend for Tozo NC9.
Reviewed in the United States on August 28, 2026 by --wolverine--
Size: Medium - SF4
Fit is perfect and these particular tips fit to my molded charging case where others did not. Customers service with the company was spectacular! My first set did not fit to my case and they identified the right option, refunded the original (which was unexpected!) and sent me a free set of the new size. I have not had them long enough to comment on durability but they are not intended to be long term items. The comfort and function are exactly what I would expect. Customer service alone was worth the purchase!
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Reviewed in the United States on September 1, 2026 by Chris