Some Alden Saddles with EP Driggs EFF World Champion Wheat Donegal. The amount of color variation doesn't come through very well in this photo, but they're pretty crazy pants; I spotted several shades of brown, green, blue, red, orange, yellow, black, etc.
The fabric is heavy enough I probably won't wear the shirt in the summer. But, I live in Texas, so wearing any shirt in the summer is too much. It is extremely soft and not unusually heavy. And, yes, I got mine with hidden button down collars. More shirts need this option.