Mack Weldon makes arguably the best men's underwear.  Inspired by the relaxed feel of classic athletic clothing—but updated for the 21st century. With the latest in performance fabric technology, the  AIRKNITx Trunks do not disappoint. 

The lightweight nylon microfiber features a special combination of two different nylon meshes to perfectly target extra airflow, so you can maximize each minute in the day. Mack Weldon cares about every last detail, even the waistband is light-as-air and guaranteed not to roll. Plus, the fabric has an odor-fighting finish and four-way stretch to give you maximum efficiency and pure comfort.

Features of the AIRKNITx TRUNK include a No-Roll Waistband, Breathable Microfiber, Moisture-wicking, odor-fighting, 4-way stretch, Mesh Cool Zones, Stay-Put Legs, Flyless Pouch and is Tagless for comfort.  

Mack Weldon TRUNKS have a 5" inseam.

50% Polyamide / 33% Polyester / 17% Elastane