Under Armour UA20900 Skull Cap Black OSFA

Unisex Skull & Wave Cap

This cap is built for athletes who need a thin layer under a helmet or a hair-wave cap during training. The one-size-fits-most design suits adults and youth of any gender. It addresses the need for sweat management and comfort without adding bulk. Buyers who want a structured brim or adjustable closure should look elsewhere.

HeatGear Fabric Under Sustained Load

The HeatGear material is engineered to keep the wearer cool during extended periods of exertion on the field. Four-way stretch compression fabric maintains its elasticity and fit throughout a full game or practice session. The elastic band holds the cap securely in place without loosening over time. It manages moisture continuously rather than only during short bursts.

Thermals Noise and Power in Normal Use

Hand-wash care keeps the polyester construction performing as intended for temperature regulation. The lightweight fabric adds negligible insulation so heat escapes naturally during wear. No mechanical parts mean silent operation under a helmet or on its own. The black colourway absorbs light but the cooling technology counters the thermal gain.