Originally Posted by CApreppie
The E2C headphones are definitely snug if you put them in your ear properly. They come with two different types of plugs, foam and firmer rubber/plastic, with three sizes of each. I found the foam a bit easier to insert but will stick with the clear rubber ones for traveling. Foam plugs can get dirty pretty quickly and you can't really clean them off well while on the go.
Comfortable is up to each person, but I find them fine. I think the key is whether or not you can wear earplugs of any sort and find them comfortable, awake or sleeping. If you don't mind earplugs then you won't mind these. If you do, buy over the ear headphones.
I use the foam inserts because I feel they make a tighter seal in my ear and block out more sound.
If people are interested in replacement foam covers, I've found those DVD rental booths in airports [In-Motion Pictures] sell 10-piece bags for $9.99. Their prices aren't extra competitive, but you aren't being gouged either. With tax in ATL, the total is $10.69. Plus you avoid paying cost-recouping shipping fees with such a small item. I haven't been able to find too many places that are cheaper when you only want 10 and not 100 or even 1000 of them.