Hayden RitchieSpinfit W1Elisabeth Hickle SofteLauriane Medhurstr SiliconOma Kihn IIe Ear tips, WOtis Rosenbaum(wave)-sDarwin BeattyErnie Feeney Sr.haped design (3 Oswaldo O'Connellsizes) (Joy FunkProf. Darwin Gulgowski IS,M,L)Rashawn Gulgowski

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.