I recommend a cotton shirt. It's a summer staple for me. Cotton: 95% Polyurethane: 5% Length: 60/63 cm Bust: 110 cm Size: Free It's made by layering two pieces in the front and back, and the collar is a slightly stand-up collar. It has slits. You can wear a cotton shirt on its own on hot days when you sweat. The fabric is thin, so it's really comfortable.