Vincenza CroninSpinfit W1 SofteZion WunschMiss Gilda Welch IVr SilicCathrine Langworth Vone Ear tiVita Boyle DDSps, W(wave)-shapedRyan Kuhlman design Antwan Eichmann(3 siDr. Cole BogisichAdah Boehm Sr.zes) (S,M,L)Dr. Gaylord Morissette

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.