Comply Memory Foam Replacement Earbud Tips for Bose QuietComfort, Ultra, II | Ultimate Comfort, Secure Fit, Superior Noise Isolation | Black (S/M/L) (3 Pairs)

The tips provided by Bose for the QC 2 didn’t work for me. My skin gets oily, as well as my ears, and the silicone tips can never stay seated in my ears for long. Even when they’re in tight they feel like they’re sliding out and I need to readjust them constantly.I have similar tips for my AirPod Pro 2 so I thought I’d give these a shot. They’re exactly what I needed! The QC 2 now stay put in my ears with no issue. I can even move around/work out/run and they still stay put.Sound quality does sound a tad bit muffled but the trade off for having ear buds that I can actually use and that stay in my ears is worth it. I will NOT be going back to the factory/oem silicone tips.For those complaining about ANC degradation I found that by linking my QC 2 with the Bose app on my iPhone I was able to make sure the proper noise cancellation mode was always selected, which should be “Immersive” if you want maximum strength ANC. The noise cancellation is still superb, and if anything more noise seems to be blocked out for me due to the ear buds having a tighter seal.All in all a worthy purchase for me. YMMV but for those who have trouble with the stock silicone tips always moving around and having to readjust give these a shot.

I've been struggling for years with the QC2 earbuds. So bad to the point that I went back to headphones and put them on a shelf to collect dust.One trip, I forgot my headphones and had to grab the buds again, struggled with them falling out while eating, sleeping, walking, etc. I figured enough time had passed that better options may be available outside of what Bose offered (I did try the Bose pack of alternate sizes as well).These snap on and fit secure on the ear buds. They fit in the case and charge fine (Medium at least). They are much more comfortable, they don't fall out of my ears, the noise cancelling is far better with them. I can't speak to endurance yet, but the fact they come in a 3 pair pack is very nice. Hopefully they are still for sale if/when I need to buy more.

This is a one star only for the ear tips that fit the BOSE QC 2. I have used multiple comply ear tips for multiple earbuds and will continue to do so but this particular ear tip goes on and is such a hard tight fit that when I went to take it off it took the earbud speaker cover with it. On both sides.

I learned a few things getting these eartips and I think these are important tips for people new to earbuds:1. My left and right ear canal are slightly different sizes. I didn't realize it until testing each ear with these foam tips. Apparently this is a common asymmetry. Once I swapped to the right size for each ear, the fit and ANC improved both with and without foam tips.2. As the title says, ANC is improved (very slightly) and fit is tighter, but there is a larger decrease in sound quality. This was apparent when listening to any music with lots of high treble notes.3. Bass is improved (very slightly). Since the fit is tighter, naturally the bass is improved. But the bass on these are already very good without foam tips, so not a huge improvement.This product is a great solution to those struggling with the perfect fit, since the foam kind of conforms to your ear canal after inserting them in. If however you can find a mix match fit with the regular tips, you will find the sound quality is a degree higher than with the foam tips. Whether they are worth it for you really depend on if you are struggling with the correct fit.TLDR: Great for getting the perfect fit and maximizing bass, but reduces sound quality.

Whenever I would eat or just simply yawn, the default silicone tips would not securely keep the earbuds in place. Though they completely remove from my ears, the earbuds lose its seal and I would have to readjust them.However, buying these foam ear tips for my QC Ultras were a life changer. They were easy to install, and were identical in size compared to the included silicone tips. They also looked pretty nice. Foam wasn’t too firm as many other reviews complained about— they seemed to be a perfect of soft and firm. They feel dense, and feel quality. They also fully fixed my yawning issue. They don’t slip out and stay in the same place I put them in my ears.

Fits well but doesn't fit in the carrying case as well anymore and lots of in and out will eventually wear them through and they break.

Best fitting,will form to any ear,these will also improve noise cancelling and because of all that your bass will improve also,I bought Comply tips for all my ear buds and highly recommend

These did not block sound any better than the silicone cups that came with my Bose ultra comfort earbuds.