I've been looking at my kilt wardrobe and I see that it's heavily slanted toward cool weather. I am replete with sweaters and turtlenecks. I could use some advice about what to wear with the kilt in warm weather.

If someone asked me for this advice, I'd tell them whatever they'd wear with trousers, wear with a kilt. My summer wardrobe consists mainly of loud Hawaiian shirts. Hawaiian shirts + highland dress = Um, No.

So I ask, what kind of shirts do you wear with your tartan kilt in warmer weather?