You will find the crew neck is just loose enough to let air circulate well.
Iron Maiden Fourth of July tour 1985 S to 3XL
A nice touch: the 3/4 sleeve is long enough to keep your elbow warm in a breeze.
District Made Mens Perfect Tri 3/4-Sleeve Raglan DM136
You will find that from XS to 4XL, the fit is true to size.
District Perfect Tri Men’s Size XXL Charcoal Black 3/4 Raglan Sleeve T-Shirt New
This 3/4 sleeve is a good choice if you want a tee that looks a bit more put together.