The Under Armour Storm Midlayer ½ Zip is a men's golf midlayer built to keep you warm on the course without adding unwanted weight or bulk. Engineered with hollow-fibre ColdGear® technology that traps heat more efficiently than solid fibres, it delivers genuine warmth even in cold, wet conditions. The outer face is finished with UA Storm water-repellent technology, so rain rolls right off without compromising breathability — making this sweatshirt a reliable companion in changeable weather. Pair it with a base layer underneath or a shell on top: the generous half-zip front makes on-course layering effortless.
UA Storm is Under Armour's proprietary water-repellent finish applied directly to the outer face of the fabric. When rain hits the surface, water beads up and rolls off instead of soaking in — so the garment stays light, breathable, and functional throughout your round. Unlike a waterproof membrane that can trap heat, UA Storm allows moisture vapour (sweat) to escape outward, maintaining comfortable temperature regulation. The result is a sweatshirt you can wear confidently on a drizzly morning or in a sudden shower without reaching for a rain jacket.
ColdGear® is Under Armour's cold-weather fabric technology, and in this midlayer it takes the form of a mid-weight knit construction that strikes the ideal balance between insulation and packability. Hollow fibres are woven into the fabric structure; these trap warm air next to the body more efficiently than conventional solid fibres of the same weight, delivering meaningful warmth without the heavy, cumbersome feel of a traditional fleece. The result is a lightweight midlayer that genuinely insulates on cool mornings and early-season rounds.
The 88% Polyester / 12% Elastane blend is engineered to stretch in all four directions — left, right, up, and down — so the fabric moves with you rather than against you. On the golf course, this matters at every stage of the swing: the fabric accommodates the full shoulder turn on the backswing, the rotational force through impact, and the extension of the follow-through without pulling, binding, or riding up. The 4-way stretch also helps the garment return to its original shape, maintaining a neat appearance round after round.
The generous ½ zip front runs from the collar to mid-chest, giving you quick ventilation control without removing the garment. When you need more warmth, zip fully up; when the sun comes out mid-round, open the zip and let the heat escape. The loose fit means there is enough room to wear a base layer underneath without a tight, restrictive feel, and the smooth, fast-drying exterior slides easily under a waterproof shell when the weather deteriorates. This makes the Storm Midlayer ½ Zip the ideal second layer in a three-layer system.
Traditional durable water repellent (DWR) finishes have historically relied on PFAS (per- and polyfluoroalkyl substances), also known as fluorine compounds, which are persistent in the environment and increasingly regulated worldwide. Under Armour's fluorine-free DWR treatment delivers effective water repellency without these chemicals, making the Storm Midlayer a more responsible choice for environmentally conscious golfers. The treatment is integrated into the finishing process and does not affect the stretch, breathability, or feel of the fabric.
The white / midnight navy colourway combines a clean, bright white body with contrasting midnight navy panel detailing for a sharp, modern look on the course. The colour-block panelling adds visual structure and dimension without being overly bold, making it versatile enough to pair with a wide range of trousers, shorts, and footwear. Heat-seal UA branding on the left chest and back yoke completes the premium finish. This colourway is available in XL, XXL, and 3XL in this listing.
| Style Code | 1383143-100 |
|---|---|
| Colour | White / Midnight Navy |
| Gender | Men's |
| Fit | Loose — fuller cut for complete comfort |
| Fabric Composition | 88% Polyester, 12% Elastane |
| Fabric Technology | Mid-Weight ColdGear® |
| Water Repellency | UA Storm Technology — fluorine-free DWR |
| Stretch | 4-Way Stretch |
| Interior | Soft, brushed for warmth and comfort |
| Exterior | Smooth, fast-drying technical face |
| Closure | Generous ½ zip front |
| Care | Machine wash cold; tumble dry low; wash zipped & inside out; no bleach, no iron, no dry clean, no fabric softeners |
| Available Sizes (this listing) | XL, XXL, 3XL |
The values below are body measurements (not garment measurements) and are provided as a guide only. Source: underarmour.com
| 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 |
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