Eddie Bauer’s Quantum T-Shirt boasts moisture-wicking FreeDry engineered polyester with FreeVent Pro, the world’s only sweat-activated venting system. Sounds pretty cool. How does it work? Moisture-activated polymers in strategic sweat zones expand to lift open critical airflow channels when the pace climbs, then shuts them when the core cools. Laser-cut patterns are placed specifically where venting is most needed on a male or female body.
Warm weather activewear doesn’t get more progressive than this. The Quantum‘s polyester has a soft, comfortable next-to-skin feel – a quality sometimes lacking in technical layers.