Build quality is great, just feeling the item allows you tell that the materials used aren't cheap, I've dropped them (and purposely tossed them) quite a few times and they still work great. They do come with their own carrying case which I love; it allows me to place them in the case and toss them in my gym bag without fear of the other items inside smashing them. As far as comfort while wearing them, they have different sizes for earbuds so you choose whatever feels comfortable. Aside from that what I really love is this "hook" looking earpiece that "hooks" inside of your ear canal (hate it when they hook around the outer portion of the ear) which makes them fit really snug and comfortable, they never fall out unless I pull them out. I'm telling you, they are going to be exactly what your looking for, plus if you buy them online you can insert a coupon code for 10% off