In-ear headphones from Boompods that both fit well and have good sound isolation. The buttons let you instantly answer a phone call or adjust the volume.
From Amazon
Boompods Digibuds USB C Headphones - In-Ear Wired Earbuds with USB Type C Connection, IPX4 Sweatproof USB-C Earphones with Microphone & Fabric Braided Cable, Long Lasting Boomflex Wire, Graphite
OnBuy
Boompods Digibuds USB C Headphones - In-Ear Wired Earbuds with USB Type C Connection, IPX4 Sweatproof USB-C Earphones with Microphone & Fabric Braided