The one thing not to wear when hunting in Scotland is the sort of fluorescent hunting clothing worn in the US in particular.
Instead, wear clothing of muted natural colours e.g., greens, browns, greys etc. Basically, the sort of colours you get in nature. Muted colours will help you blend in with the countryside and also will ensure you don’t look out of place if you are sharing a hunting day with some Scottish Locals.
Camouflage or no Camouflage?
The best thing to wear when hunting in Scotland is probably not Camouflage.
Camouflage can be worn, and it certainly won’t hinder your chance of hunting success, but it’s only really worn in Scotland for specific types of hunting e.g., deer stalking or duck / goose shooting. Even for deer stalking, most people don’t wear camouflage, just muted colours or tweeds. So, if you are coming for a general hunting trip and want to be sure to fit it, avoid camouflage.