Whatever you do, don't call it underwear. Our Airborne LS 2 base layer pants are so much more than just that. Made with incredibly stretchy, hypoallergenic Dryarn®, soft-to-the-touch fabric and constructed using 3D round knitting for comfort-assuring, minimal seaming, the Airborne LS 2 puts base back into base layer. These form-fitted, long leg pants are truly the foundation of any road-ready outfit. Keep you feeling cool and fresh By engineering specific fabric structures into the Airborne LS 2's design, perspiration is wicked away and allowed to evaporate effectively and quickly, to keep you feeling cool and fresh however demanding conditions might get. On top of its heat-regulating properties, the Airborne LS 2 base layer also prevents your top layer pants from sticking to your skin.