If that's the expectation, fine.
It's compliance with the expectation. We've long worn the full uniform without the tie in my base even after the polo/shorts was approved. We're the only base in the entire company still wearing the pilot uniform in fact. The previous ACP hated it and expected otherwise. I strongly encourage/kind of expect the tie in addition at this point, at least in the terminal. I do expect one to wear the bars still. We're pilots, not camp counselors.
@ItsAFunZone
Those that don't comply in both cases have not been good pilots. Again, attention to the small things translates to attention to the big things or, at the very least, disrespect if not complied with.
All that being said, sorry man, certain clothing/footwear, particularly footwear, isn't preparing you for the unknown enough in my mind... Maybe Adidas will melt to your feet, but I'm willing to bet a year's salary(admittedly isn't much...) that those melted tennis shoes are going to get you farther than wearing sandals that are kind of melted to your feet.