tights

Q: Is it permissible for a man to wear tight pants during a sporting activity e.g.cycling. The pants is covering the satr.

Q: Is wearing jeans for women under abaya haraam or makrooh? If yes then why? Also, ladies argue that if you say that wearing jeans is tashabbuh bil kuffar or tashabbuh bir rijaal then why do we wear tights which is more revealing than jeans?