collars work very well and do their job. The only thing, at least for me, was that at the end of the day I unbuttoned my tie and collar and forgot about the magnets in my shirt. I was lucky I found magnets either on the floor or in the belt. I bought extra magnets because I lost a few so it's all on me. I know I can put a magnet on the inside of the collar, but that doesn't stop my collar from lifting when inside the shirt. Who has another way, tell me? Many Thanks.