Dress shirts are usually worn when playing snooker have seen chinos on a golf course, cricketers wear shirts does that make them sports wear ?
Where do you draw the line ?
When I go out I nearly always wear a polo shirt as they in my opinion look smart (a lot smarter than some peoples idea of a dress shirt )and can be worn with a jacket as well.
I won't be wearing jeans or a tee shirt of an evening but I will look smart and will feel comfortable.