The Under Armour Storm Daytona HZ is the one mid-layer you can keep on all day long. Engineered with UA Storm technology and a smart combination of spacer fabric and Armour Fleece®, it adapts to changing temperatures — keeping you warm when it's cool and venting excess heat as conditions improve. Designed for the golf course and beyond, it delivers the stretch, mobility, and protection you need without ever getting in the way of your swing.
UA Storm is Under Armour's signature water-repellent finish applied directly to the fabric. It creates a barrier that causes water to bead up and roll off the surface rather than soaking through, so you stay dry even in light rain or on a dewy morning round. Critically, the treatment is engineered to maintain full breathability — your body's moisture and heat can still escape outward. The Storm Daytona uses a fluorine-free DWR (Durable Water Repellent) formula, a more sustainable approach that delivers the same high-performance protection without harmful fluorochemicals.
The body of the Storm Daytona HZ features a lightweight, smooth spacer fabric that runs through the sleeves, back, and center of the torso. This construction traps a thin layer of air between two fabric faces, providing insulating warmth without bulk or weight. The 91% polyester / 9% elastane blend gives the fabric inherent four-way stretch, so the garment moves naturally with your body through every part of the golf swing — backswing, downswing, and follow-through — without pulling or restricting range of motion.
Panels of tightly woven fabric are strategically placed on the front of the jacket to act as a wind barrier, blocking cold gusts where you need protection most. These overlay panels are lined with Under Armour's Armour Fleece® — a soft, brushed interior fabric designed to trap body heat and create a warm microclimate next to the skin. The combination means the Storm Daytona can shield you from the wind without feeling stiff or restrictive, and the fleece lining adds a premium level of comfort against bare skin or over a thin base layer.
One of the most practical features of the Storm Daytona HZ is its ability to adapt to changing conditions throughout the day. The breathable insulation and spacer construction work together to hold in warmth when temperatures are lower in the morning, yet the fabric's breathability allows heat to escape as the day warms up or your activity level increases. This means you can leave the Storm Daytona on all round rather than constantly adding or removing layers. The generous ½ zip gives you additional quick-vent control when you need to cool down fast.
The ribbed elastic cuffs at the end of each sleeve are designed specifically with golfers in mind. They grip the wrist securely so that the sleeve stays in place at address and does not ride up during the swing, giving you a consistent, distraction-free feel at every club. The overall silhouette is cut to Under Armour's Loose fit — a fuller, roomier profile that accommodates base layers underneath and gives arms and shoulders complete freedom of movement. Whether you're reaching for a long drive or a delicate chip shot, the fit stays out of your way.
| Attribute | Details |
|---|---|
| Style Number | 1379723-426 |
| Color | Varsity Blue (426) |
| Gender | Men's |
| Fit | Loose — Fuller cut for complete comfort |
| Body Fabric | 91% Polyester, 9% Elastane |
| Woven Overlays | 87% Polyester, 13% Elastane |
| Fleece Lining | 100% Polyester |
| Water Repellency | UA Storm (fluorine-free DWR) |
| Closure | Generous ½ zip front |
| Cuffs | Ribbed elastic |
| Care | Machine wash cold with like colors; tumble dry low; do not iron; do not use softeners; do not dry clean |
| Available Sizes | S, M, L, XL, XXL |
| Size | XS | S | M | L | XL | XXL | 3XL | 4XL |
|---|---|---|---|---|---|---|---|---|
| Chest (cm) | 76–81 | 86–92 | 96–102 | 106–112 | 116–122 | 127–132 | 137–142 | 147–153 |
| Waist (cm) | 67–70 | 72–76 | 80–85 | 89–94 | 99–104 | 109–116 | 121–127 | 132–138 |
| Hips (cm) | 81–84 | 86–90 | 94–98 | 102–107 | 112–117 | 122–127 | 132–137 | 142–147 |
Measurements in the table are approximate guidelines only. Size data source: underarmour.com.
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