Factors to consider while Eartips :
Material - Not all eartips are made equally, and every eartip serves a specific purpose and presents a peculiar fit. You get eartips in materials like Rubber, Silicone and Foam. You can choose a pair of Eartip based on your preference.
Types - There are mainly four types of eartips you can get your hands on. These are categorised as Standard, Bi-Flange, Triple-Flange and Wingtips. Standard are is typically pre-installed and are the lowest denominator of eartips. Bi-Flange is more invasive than traditional ear tips. Though they take some getting used to, they provide excellent sound isolation. Triple-Flange may feel like they’re excavating your ear canals (relative to standard tips), but they provide all the same benefits as bi-flange ear tips and isolate you even more from your surroundings. Wingtips are pretty much reserved for workout earbuds and are usually an optional add-on to the separate silicone ear tip.
Size - Aside from materials and Types, there are size variations to consider. For each style option available, you can typically find them in at least the usual small, medium, and large.