This item is styled with the British Officers Shirt Type 2, which you'll want to get your hands on before summer hits. Hemp yarn has countless tiny holes making it breathable, and is a material with excellent moisture-regulating properties, making it cool and dry to wear even in the summer.
For the pants, I sized up the classic ARMY CARGO PANT and added a little colour to my footwear to complete the look.
It would also be fun to try changing your shoes and cap to suit your mood.