Let me start by saying I've put these Sport-Tek shirts through the wringer—dog walks, sweaty runs, and even a Florida heatwave. The 100% polyester interlock fabric with PosiCharge tech is no joke. It's featherlight (3.8-ounce!) yet durable, and that removable tag? Genius for us sensitive-neck folks.

The GOOD:
- Wicking performance surprised me—kept me dry during 5K runs despite being cheaper than Under Armour
- Colors POP (my neon orange one makes me visible to traffic from a mile away)
- Fits true-to-size for most (though some find it runs large—check those size charts!)
- Holds up beautifully to embroidery if you need work uniforms

The NOT-SO-GOOD:
- Odor control is mediocre—you'll want Febreze after intense workouts
- Sleeves run long (I'm 5'7" and they graze my elbows)
- Loose collar might bother those who prefer a snug fit

Pro Tip: These shine as budget base layers in winter or standalone tees in summer. For $15-$20, they outperform most department store athletic wear. Just size down if you're between sizes!