Mountain Equipment Comici shorts or long trousers if absolutely needed, with Underarmour kecks and a Berghaus Tech T-shirt and a wet Tilley hat for me. I also carry a small tin of Vaseline in case of chafing due to sweat - worth its weight in gold if it's needed.
I also like to keep well hydrated. I take a water bottle made up with electrolyte tablets e.g. SIS or High5 Zero to supplement my water bladder which has 2-3 litres of water (depending on re-supply possibilities) and drink from both. When the bottle runs out, I make up a second one. I've used this system on multi-day treks in Morocco, Nepal and France I have avoided the nightmare of getting cramp whilst camping.
Midges go for me big time despite DEET or Avon Skin So Soft or Smidge etc, etc, etc, so sadly the Highlands are a no-go area for me in the midge season.