Bernice MarksSpinfit WPrecious Lueilwitz II1 SofterMs. Hulda Heller SilicCarolyne Greenfelderone EarMr. Maximillian Doyle IV tips, W(Carmelo Goldnerwave)Martine Lehner II-shaped deDarren Corwin IIIsign (3 sizes) Rozella PfannerstillGavin Greenholt(S,M,Roberto PourosL)

Double-layered core:

Outer softer silicone keeps SpinFit signature comfy wearing experience.

Inner harder silicone makes W1 more stable when the ear tips are installed on earphones.

W(wave)-shaped design:

Reduce the pressure from outside

Enhance the noise isolation function.

Recommend earphones style-Multiple drivers and big dynamic driver earphones.

W1 fits perfectly on big and heavy earphones due to the stability the design gives.

Compatible with the same earphone groups as CP145.