VelProTech™ Enclosure Rubberized hook-and-loop closure for secure, all-conditions fit and one-hand adjustability.
Moldable UltraMold™ Brim Adaptive shape-memory construction that holds your custom curve.
ProWeave™ Ultra-Liner Soft, moisture-wicking liner with breathable, check-texture construction for long-wear comfort.
AER Splash™ water repellent technology keeps your hat from getting water logged. The water beads up and runs right off the hat, almost like magic!
HyperPoly+™ fabric for heightened sweat stain prevention (no white sweat lines)
Hidden AER Run Pocket! Store a key or fuel right inside your hat (select styles)
Ultra lightweight; light as a feather fabric
Extreme sweat wicking material to take on your toughest runs/adventures
Maximum durability for longer lasting colors (stays fresh as the day you got it!)
Low maintenance care. Wear, sweat, hand rinse cold (only), REPEAT! No washing machine required to stay fresh!

Alter Ego Running