UltraCool ポケットTシャツ

The jersey knit is seriously breathable—I wore it all day running errands and never felt clammy, even in the heat. And the pocket is deep enough for my phone, which is a bonus. Just size up, since it definitely runs small, but once you do, it's a perfect everyday tee.

Bought my usual size and the fit is snug as warned, but honestly that makes it perfect for lounging without looking sloppy. The NASA-engineered fabric really does keep me cool—I wore it through a hot afternoon and never felt sticky.

The fabric feels noticeably cooler than my other tees, almost like it’s doing something active against my skin. I sized up because of the note about it running small, and the fit is perfect for lounging without being baggy.