DropTemp® Dry Cotton (2 Pack)

The underarm insets actually do something — I wore this to a backyard party and stayed dry through hours of chasing my kid around. Fabric's soft enough that I forget I'm wearing an undershirt at all.

Wore this through a muggy 90-degree day and the underarm insets genuinely kept things dry, no embarrassing marks at the office. The cotton itself feels softer than my old undershirts after a few washes. Two in a pack at this price is a solid deal.

The underarm panels actually work — I wore this to a meeting after biking there and no pit stains showed up. Cotton still feels like cotton, just cooler where it matters. Bought the 2-pack and already planning to grab more.