Built for cold-weather performance, the Under Armour CG Armour Fitted Mock is a men's functional long-sleeve base layer that delivers genuine warmth without unnecessary bulk. Its signature dual-layer ColdGear® fabric — brushed and warm on the inside, smooth and fast-drying on the outside — keeps your body temperature regulated whether you are training outdoors, layering under a jacket, or pushing through a chilly morning round on the course. The fitted silhouette sits close to the body for a streamlined feel, while the mock neck collar adds an extra layer of protection around the neck where you need it most.
At the heart of this base layer is Under Armour's ColdGear® dual-layer construction — the technology that started it all. The inner surface is brushed to a soft, fleece-like texture that traps and circulates warmth directly against your skin, while the outer face remains smooth and tightly woven to repel moisture and shed the cold. The result is a fabric that performs like a thermal layer but fits like a second skin. Whether you are running in near-freezing temperatures or warming up on a cold morning, this dual-layer system regulates your core temperature efficiently without the added bulk of a heavier insulating layer.
Even in cold weather, intense physical activity generates significant body heat and sweat. The CG Armour Fitted Mock addresses this with stretch-mesh panels positioned on the back and under each arm — the zones where heat accumulates most during exercise. These panels are lightweight, breathable, and engineered to promote airflow exactly where it is needed, releasing excess heat and moisture without creating cold spots or drafts. The mesh itself has the same 4-way stretch properties as the main body fabric, so ventilation never restricts your movement.
The 87% polyester and 13% elastane blend delivers four-directional stretch, meaning the fabric extends and recovers with your body no matter how you move — overhead, laterally, through a golf swing, or mid-stride during a run. The fitted cut is shaped ergonomically with seams deliberately placed away from pressure points and high-friction zones, eliminating the chafing that standard flatlock seams can cause. A dropped and shaped hem ensures the shirt stays tucked and provides full coverage across the lower back during bending, crouching, and athletic movements.
Performance base layers need to manage sweat as efficiently as they retain warmth. The smooth exterior layer of this garment is engineered to wick perspiration away from the body rapidly, pulling moisture to the fabric surface where it disperses and evaporates quickly. This keeps you dry, light, and comfortable even during high-output sessions. Integrated anti-odor technology inhibits the growth of odor-causing microbes within the fabric, maintaining freshness across training sessions and reducing the frequency of washing required — an important factor for athletes who wear base layers daily.
The raised mock neck collar is one of the most practical design features of this base layer. It sits snugly around the lower neck to block out cold air and wind at a point where many standard crew-neck shirts leave a gap. When worn as a standalone top it provides visible, purposeful coverage; when layered under a jacket or mid-layer it serves as an additional thermal barrier without bunching or folding. The collar stretches comfortably with the rest of the garment and maintains its shape after washing, making it a reliable feature season after season.
| Brand | Under Armour |
|---|---|
| Model | CG Armour Fitted Mock |
| Style Code | 1366066-001 |
| Colour | Black |
| Gender | Men's |
| Fit | Fitted |
| Collar | Mock neck (turtleneck) |
| Sleeve | Long sleeve |
| Technology | ColdGear®, 4-Way Stretch, Anti-Odor |
| Material | 87% Polyester, 13% Elastane |
| Available Sizes | XS, S, M, L, XL, XXL, 3XL, 4XL |
| Care | Machine wash cold with like colours; non-chlorine bleach only when needed; tumble dry low; do not iron or dry clean; do not use fabric softeners |
| 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 | 138–150 |
Measurements are approximate and intended as a guide only. Source: underarmour.com.
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