can i wear khaki sandals on my profile pic?

Is this a dating profile? Cause the second I see those delicate  ladies sandals I'd be swiping left so fast it would warp the time space continuum. If it's your Facebook/twitter/ social media profile remember that your boss, mom, priest, and everyone will see you in ladies sandals. If your okay with that then whatev dude but if anyone on that list would be offended enough to make your life miserable or fire you from your job then skip the footwear.

sure you can as no one is gonna see them

Yes. You will be beautiful.