A performance golf cap engineered for maximum comfort on the course. The Under Armour Iso-Chill Drive Low STR cap uses advanced Iso-Chill fabric technology that quickly pulls heat away from the skin, keeping you calm, cool, and focused — even when temperatures are at their peak. The stretch-fit construction adapts naturally to any head shape, delivering all-day comfort without the need for an adjustable closure. A clean, low-profile silhouette and a discreet embroidered Under Armour logo at the front complete a modern, sport-ready look that works just as well off the course as on it.
Iso-Chill is Under Armour's proprietary cooling technology built directly into the fabric fibers. The fibers are specially flattened and treated to increase surface contact with the skin, accelerating the rate at which body heat is drawn away. The result is a fabric that feels perceptibly cooler to the touch than standard polyester — not just at rest, but throughout the heat and exertion of a full 18-hole round. Whether you are walking the fairways in midsummer or practising in a covered range on a humid day, Iso-Chill works continuously to keep your core temperature in check and your focus on the game.
The durable stretch fabric covering the front panel carries an official UPF 50+ rating, blocking over 98% of the sun's harmful ultraviolet radiation. This makes it suitable for extended outdoor activity without additional sunscreen coverage on the forehead and scalp. The pre-curved visor adds an extra layer of shade, protecting the eyes and face during afternoon rounds when the sun sits low and direct. Combined with the Iso-Chill cooling effect, this cap genuinely reduces the physical toll of playing in full sun on a hot day.
The back panel is constructed from a spacer mesh fabric that creates a physical air gap between the cap and the skull, promoting continuous airflow even when there is no breeze. The side panels feature precise laser-perforated holes that further enhance cross-ventilation, drawing warm, humid air out and allowing cooler ambient air in. Together, these ventilation zones work alongside the Iso-Chill sweatband to prevent heat and moisture from accumulating under the cap — a common issue with fully structured, solid-fabric golf caps. The result is all-around ventilation that keeps you feeling fresh from the first tee to the 18th green.
Unlike adjustable caps that rely on a plastic or velcro closure at the back, the Iso-Chill Drive Low STR is built entirely from an elastane-blend stretch fabric that gently conforms to the exact contours of your head. This eliminates pressure points, prevents the cap from riding up during the swing, and gives a sleeker, more aerodynamic appearance from every angle. The structured front panels maintain the cap's shape through repeated wear and washing, while the elasticity ensures a consistent, comfortable fit over years of use. Available in two sizes — M/L and L/XL — to accommodate the full range of adult head sizes.
| Specification | Details |
|---|---|
| Style Number | 1389887-410 |
| Color | Midnight Navy |
| Fit Type | UA Classic Fit — pre-curved visor & structured front panels, low profile |
| Closure | Stretch fit (no adjustable closure) |
| Crown Height | Low profile |
| Sun Protection | UPF 50+ |
| Ventilation | Spacer mesh back panel + laser-perforated side panels |
| Sweatband | Iso-Chill sweatband |
| Branding | Embroidered UA logo at front |
| Material | 95% Polyester / 5% Elastane |
| Available Sizes | M/L, L/XL |
| Gender | Men's |
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