Would recommend a Linen pant, lined with a light flannel.
Our linen has the perfect formal look. Linen+flannel would add some nice weight.
Home washable and warm. Excellent comfort for all day wear.
On button-down shirts, the points are 3.5" by default, can be made of a the size, shape you prefer at no additional cost.
A few more added.
May I ask if the heavy white linen you just posted is 'not' see through? I am looking for a summer business shirting fabric (if there is something more breathable yet still appropriate in a white or stripe please link).
Do you think the heavy white linen would look quite different to the average white shirt?

May I ask if the heavy white linen you just posted is 'not' see through? I am looking for a summer business shirting fabric (if there is something more breathable yet still appropriate in a white or stripe please link).
Do you think the heavy white linen would look quite different to the average white shirt?
Yes. It is pretty opaque but still very breathable. Linen has its own unique structure. But, apart from that, the white linen can be worn in a formal work environment with comfort.
Standard 2-day Fedex delivery all over the world, as long as Fedex delivers there.