A combination of CP1025 eartips and CPA11 adapter. Eartips: SpinFit patented 3D axis to fit like customized. Adapter: Patented adapter designed exclusively for AirPods Pro Gen 1 & 2. Reminder: *NOT Compatible with AirPods Pro 3* IP54 Dust and spray resistant mesh protector Detachable ear tips, easy to replace when needed Medical-grade silicone ear tips to reduce allergic reaction Main feature: lighter and more comfortable fit with soft, flexible ear tip material. If you choose the same size as the original tips, you’ll experience a lighter fit with slightly reduced passive noise isolation. For a fuller, more secure feel and stronger noise isolation, we recommend going one size up.