Closed type, isn't it tiring this time of year? Take on the summer challenge with Anker's "earphones that don't block your ears"

Free your ears! Aren't canal earphones inserted deep into the ear to create a seal? No, the sound is good, and the sound insulation is good, so I can concentrate. But... in this heat, the insides of my ears get stuffy and the canal ceremony is a pain, to be honest! So, the summer earphones that I'm interested in now...