Are they recommended to someone (like me) that uses the smaller thinner ear tips?

I usually prefer those types of tips, but I needed something that held them more secure for gym or more active use. I did find that the Comply tips fit bigger than the default tips. I was using the medium tips for my Sony WF-1000XM3s, but I had to use the small size Comply tips to get the same type of fit. Hopefully that helps!

Are these the 220-c’s or not?!

not sure what 220-c's are but I have them for my XM3 earbuds and they are great.

Why don't you offer a pack with all 3 sizes in it? That way customers can try different sizes without reordering

On the other hand they offer a full refund to replace with the correct size, and as being made from memory foam, it is likely to fit most of ears with the medium one... I usually use either medium or large depending on the maker, on this one I've tried the medium and its working very well.

Unit Count	3.0 Count
Manufacturer	Comply
UPC	655942350319
Global Trade Identification Number	00655942350319
Item model number	35-42331-11
Color Name	ブラック
Material Type	プラスチック
Size	S

Comply フォームイヤーチップ Sony TrueWirelessイヤホン用 - Sony XM5 WF-1000XM5 WF-1000XM4 WF-1000XM3 WF-XB700 究極の快適性 揺れないフィット Sサイズ 3組 ブラック

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Comply フォームイヤーチップ Sony TrueWirelessイヤホン用 - Sony XM5 WF-1000XM5 WF-1000XM4 WF-1000XM3 WF-XB700 究極の快適性揺れないフィット Sサイズ 3組ブラック