I was concerned they wouldn't fit, but they went in without a hitch in both ears, and the ears don't feel fatigued. The environment is audible, though in my situation it is not crucial (it is preferable to regulate what is going on than to entirely block it out), and it might cause someone trouble. When I firmly put the headphones into my ear, all outside noise is fully muffled, but you won't walk that way.
Headphones Sennheiser CX 300-II, black
318 Review
Upgrade Your Music Experience with XiaoMi True Wireless Earphones 2 Basic - Longer Battery Life and Superior Sound Quality (White, International Edition)
341 Review
π§ HUAWEI Freebuds 4i: Wireless Earbuds with Active Noise Cancelling & 10H Battery Life in Black
279 Review
π§ Huawei FreeBuds Pro Earbuds with Advanced Noise Cancellation, Bluetooth 5.2, and 3-Mic System for iOS and Android (Carbon Black)
295 Review
Black Panasonic RP-HJE125E-K Wired Earphones π§ with 3.5 mm Jack
359 Review
π§ Experience Unmatched Audio Quality with Marshall Major 4 Bluetooth Headphones
104 Review
Massdrop x Koss Porta Pro X On-Ear Headphones: π§ Noise-Cancelling Mic, Voice Assistant, Track Skip | Collapsible Midnight Blue
314 Review
New White Marshall Minor II In-Ear Bluetooth Headphone
101 Review