Bern Women's Zipmold 8 Tracks Audio Knit 21 7/8 - 23 1/4 Fits the BERN Brentwood Zipmold Helmet BERN's Audio Knits are low profile, so even if you are not rocking the audio, you have a clean and slim, functional knit High fidelity drivers pump premium loud quality sound and solid bass Goggle Clip included with knit purchase