I purchased two of these shirts. They are extremely comfortable and can be worn under a polo shirt. I just purchased three more and a sure I will ger many seasons of use from them.
I reelly like this item. I lost some weight so I purchased a new one to replace one that is too big. Anyway love the double layer. The shirt is excellent when it starts to be just a little chillyl. Heavier and warmer than a plain cotton shirt. And when colder perfect for layering. I got a crewneck and now I would like to get a Henley.
This item is OK for general day wear or for warmth around the house on a cool day, but not something I would wear to a casual function. Maybe it will grow on me.