What's really Fashionable?

I didn't really pay attention to male fashion trends in France, but I know that my female friends and I agreed that the men dressed well. We found that we came to appreciate guys who took time to put together their wardrobes. Sweaters with collared shirts and button downs were the most common outfits that I saw my French brother wearing. Nothing struck me as particularly noteworthy about his style, but he never dressed down. (Aka no sweatpants, t-shirts, gym shorts etc...) I don't know if this is a good or a bad thing. It's nice to see that the French, both men and women, take pride in their clothing. But I like to think that an American style dictates comfort if needed. I know that I love to do my homework on Sundays in my boyfriend's fleece gym pants. It is acceptable to wear sweats out of the house without receiving disapproving glances. I loved admiring dress in France, but sometimes I reverted back to my American habit and relished in comfort spelled "P-I-T-T" across my chest.