I think comfort and fit are the most two important factors when choosing eyeglasses for men, I love that kind of eyeglasses, but how to pick up them? What shoul I consider if i need these glasses, please give me some advice, what about stainless steel frames?

When refer to comfort and fit, I suggest you to check the nose pad and temples when choosing your eyeglasses frames, soft, silicon nose pads are comfortable to wear and theyt reduce the pressure of the frames, and you can choose long temples which should be long enough to extend over your ears.