[atlas chew]

Hi guys, im Atlas and im looking for a new gaming headset. Im thinking of getting the hyperx cloud 2 but i cant seem to find it in any of the retail stores near me. The only thing im worried about is the size, i used to wear razer kraken and it hurts my ears alot so i usually use my speakers. But now i want a headset purely for gaming, should i just order it online? What if the size doesnt fit me, is that a problem? Or should i just look for other models that i can easily try on. Any help will be appreciated thanks!