Adidas AH609 Fundamental Gameday Stretch Cap – Unisex Climacool Perforated Cap | S/M–L/XL

The Adidas Fundamental Gameday Stretch Cap is built for athletes and teams who want the clean, no-strap look of a fitted cap with the convenience of a flexible stretch fit. Made from 100% polyester with Climacool technology, the cap is designed to stay cool and comfortable through long practices, game days, or hot afternoons on the sidelines.

A structured, six-panel, mid-profile crown gives the cap a traditional, team-ready shape, while perforated side panels add extra ventilation in a spot where heat tends to build up under a fitted cap. That combination of structure and airflow makes it a practical choice for coaches, players, and fans who want a cap that looks sharp without trapping heat during active wear.

Decoration space is built into the back panel through a flat 3-bar embroidery zone, leaving the front panel clean and ready for a team logo, mascot, or wordmark. Because the cap uses a stretchfit closure rather than a strap or snap, it sits snugly against the head without any visible adjustment hardware, giving it a more finished look for game-day and sideline wear.

The stretch construction is offered in two general size groupings, S/M and L/XL, which lets teams dial in a closer fit across a roster instead of relying on a single one-size-fits-most option. That sizing flexibility, paired with the cap's ventilated side panels, has made it a popular pick for athletic departments, club teams, and booster programs looking for game-day headwear that performs as well as it looks.

Fabric: 100% polyester
Technology: Climacool moisture-management
Construction: structured, six-panel, mid profile, perforated side panels
Features: flat 3-bar embroidery zone on back, stretchfit closure
Sizes: S/M – L/XL
Brand: Adidas
Style No.: AH609