Hi my sons school has marine cadets. It is optional but he's thinking of going. At the start of the year when it all opened before closing again. We had a look around at the marine cadets and they showed us previous pictures and stuff. They were wearing blues and seemed to always wear blues unless they were in the field. Even on there summer camp. To me this just seems crazy them wearing such a thick layer of clothes when its 35c outside. I don't want my son being in any danger or anything. But when I asked if they have other uniform for the summer they just said they wear blues for most things and then a tshirt jumper and smock for the other stuff in like the field. Like is this normal?