A nice touch here is the short sleeve length, which is neither too high nor too low.
Conquest Viltrumite Warrior Graphic Apparel: Vintage Washed Oversized T-Shirt
With short sleeves, you can move freely without fabric bunching up.
Retro Dead Space Acid Washed Graphic Tee Unisex Oversized Heavyweight Cotton
You will find that short sleeves work great for active days when you need airflow.
Linkin Park T-Shirt Large Gray Rock Band Hybrid Theory Graphic Tee Spencers
The crew neck here is a nice touch, offering a secure fit without pressure.
Ippo Makunouchi Dempsey Roll Boxing Graphic Apparel | Vintage Acid Wash Oversize
What stands out about the short sleeve is the way it opens up the shoulders.