I was getting fed up of the standard silicone ear tips and poor fit that meant my earbuds felt like I was constantly looking for that fit that meant I could fit and forget. Enter Comply, I had felt they were an expensive gimmick, and thought I would give them ago. I ordered from Comply UK and bought a pack of medium size after checking the size against the tips on my hearing aids. When they arrived I tried them but felt like they were too big and did not fit and were falling out of my ears. I contacted Comply and explained the problem and they understood the problem and under their guaranteed fit programme sent the small size. I had perhaps not taken into account the thickness of the memory foam in comparison to the silicone of my hearing aids. I fitted and tried the small size and found a great fit and tested during my run of 45 minutes I never felt they were going to fall out. The comfort was lovely and firm but barely sensed, feeling as light at the end as they did at the start. Now they don't look as expensive and I recommend trying them out.
After using for a week the quality of the materials and manufacture seem good. The fit on my Anker Liberty Air 2 Pro is not so good. Very difficult to get a good fit for noise cancelling. Fails the air buds apps test for a good seal. I got the medium size. Should be the correct size, but may have been better with the large.
After constantly losing my Buds falling out of my ears, I watched a review of Comply Foam products on YouTube. Impressed by the review, I decided to buy a pair of Comply Foam tips. They work REALLY well. And the service was first class, with the tips arriving in just a couple of days. Fantastic