Good but not revolutionary I like that they are attached to their own pieces, however i had to use the original earpieces over these and fit them inside to make them actually seal. I have the comply ones and the foam in these don't rebound as fast (good thing, the fast rebound tends to hurt the ear). However, if you remove this from your ear and put it back, the foam is a little slow moving so it wont seal and may not even sense the headphone is in your ear. So you are left leaving it in your ear. The perfect fit was this, i had to remove the foam from the attachment (snaps off), and physically remove the rubber inner ring, and then take the original apple earpiece, and put this foam inside that. This is the only comfy way to get a good seal every time.

Just wow!! Just wow!!! As a musician this type of comfort is a new level, been playing drums and using finally my AirPods and oh man!!! They feel secure, sound cancellation has become high end better than your regular ear tips. They never fall off due to sweat or shaking your head. 100 out 10 highly recommended.

I dislike having to rate so low I dislike having to rate so low, but I must given utter lack of seal I get from these (size L). The choice to not publish measurements is questionable. I utterly wasted $$ for 3 pairs of tips that give me zero seal. Quality of materials seems fine, but does me no good. I now have oval-shaped ear tips that will sit in a drawer, unused )hopefully I can trade them at some point in the future.

Superb Products and customer service.A++ I have been a regular customer of Adv products right from model 3 time (which is still a great.earphone btw) and when they were called advanced sound. I am truly a fan of their customer service. Although I am based in Australia but they have always responded with utmost sincerity - understanding every aspect and responding in a truely supporting way. I had an issue with a Model 3 last to last year and a Model X+ few days back and they have always taken care of me Love your products and the customer service. A++ Cheers, Ashish

Custom tips for Z1R Fantastic experience doing business with ADV. I ordered a set of custom tips for Sony IER-Z1R. ADV delivered a perfectly fitting set of tips in far less time than originally estimated, and was also able to deliver 3D scan files of my ear impressions for further use.