Under Armour HeatGear Sonic Armour Vent Sleeveless - Mens (#1)

What is this?

A sleeveless athletic shirt for working out.

Why did I buy it?

My normal workout wardrobe consisted of old pairs of gym shorts and the t-shirts that had moved from 'daily wear' to 'never wear' due to stains and other various imperfections. I don't want to be in a situation where my outfit incorrectly signals to someone else that I am a slob, even while working out. I also don't like how my cotton t-shirts restricted some of my movement after I began to sweat.

I bought three of these sleeveless shirts and use them exclusively when working out. My movement range is improved and since they aren't cotton, they take up less space and dry faster than my previous shirts.