TISA Snapbacks Controversy

Controversy has risen with the up and coming snapback hats made by TISA. what TISA does is take already made snapbacks and embroider their logo onto it. Is this even legal? Honestly they are pretty hot and I have one hat by them. The thing is that it is very easy to cop a fake, wether it was on accident or on purpose and this ruins it for those who buy real TISA's because then it makes you think "well it really only is just embroidering a logo on the hat" which probably costs them no more than 2 bucks per hat. Keep in mind they sell the $30 snapbacks for $60 to $100 on average usually $100.