I've always hated putting on a polo shirt in the morning because I felt pretty good, only to look in the mirror later in the day and see my ridiculously rolled up collar. I bought these as a refill pack to try and I have to say that I really like these things. I also recently bought a cheap shirt online because I liked the color, the cut and the price was low. Find out that not only where there weren't built-in collar panels - sewn in or otherwise - there weren't any slip pockets at all. The no curl collar remains the salvation. I have to shorten them a bit for this shirt but they look great. Now this is one of my favorite shirts (except it hasn't been ironed yet). I'm debating whether to buy a permanent iron (I don't have an iron yet, so probably not) or a dispenser set. Maybe just buy a spare bag again and throw it in the box with my metal holders and collar extensions. (They're actually not pretty enough that I feel the need to display them on a dresser, but it's still a five-star purchase.)