There are tons of commandments in the OT given to the Jews that nobody is expected to follow now. The NT did away with the OT law, and if it isn't a commandment given in the NT, it doesn't apply under the New Covenant in my opinion. You just have to think about the consequences of your actions and make a moral decision. I see no reason why you shouldn't dress however you want to. Using the OT to decide is silly because you wouldn't forbid anyone from eating shellfish or wearing mixed fabrics, or expect anyone to make an animal sacrifice to appease their sins. Plus, the idea of clothing being specific to men or women is a completely human construct and it changes all the time. High heels used to be for men. The color blue used to be a girl color. Clothes are just clothes. Do what makes you comfortable and as long as you aren't hurting anyone, why would it be a problem? We can't just pick and choose bits of the OT to dictate what is allowed now because we think it's weird or icky. That's not biblical.