What is it? Under Armour ColdGear makes use of a double-layer fabric which helps to wick moisture away from the wearer's skin and circulate body heat. The lightweight construction allows for high levels of warmth without added bulk that can slow you down.

Under Armour ColdGear Compression Mock The mock is made of a blend of polyester and elastane, or spandex, and, according to the company, the material has “4-way stretch,” so it moves and stretches well in every direction.

HeatGear styles are created with performance fabric that keeps the person wearing it "cool, dry, and light" in warm or hot conditions. ColdGear styles are also created with performance fabric, but fabric made to keep you "warm, dry, and light" in cold, winter conditions.

Each of the Cold Gear Base Layers, base layer, base layer 2.0 and base layer 3.0 are great. I have worn each of them, original base layer on days at abour 50 degrees, base layer 2.0 while doing winter sports with temps above 32 degrees and base layer 3.0 for days that are cold and damp at 32 degrees to negative temps.

I mean it's just so simple to understand it's under armour heat gear it's going to protect you from the heat. Make you cooler moving on to cold gear coal gear is basically helping you out in the cold.

​Traditional Arctic clothing consists of two layers of caribou skin garments. Caribou skin is used because the hollow hair follicles contain an air bubble; they also trap insulating air. The inner layer has the fur turned inwards towards the skin, while the outer layer has the fur turned outwards.

In terms of fiber use, over 80% of Under Armour's materials are polyester-based (both virgin and recycled), which, by many measures, is more sustainable to produce than alternative fibers. Polyester may also reduce GHG emissions from consumer use.

Under Armour is a large, global company, however, and the question of where its products are manufactured is more complex. Currently, most of UA's products are still made overseas, particularly in China and other Eastern nations.

UA ColdGear® Cozy Crew I wore this for several runs in the high 30s, low 40s. It's perfect on it's own, but also works well under a jacket for the colder days. The sleeves are designed with thumbholes (which I love) that help keep heat in.

HOW TO DRESS FOR THE COLD IN 4 EASY STEPS

1. Step 1: Base Layer. Start with a layer against your skin.
2. Step 2: Mid Layer. The mid layer traps heat against the body to keep you warm.
3. Step 3: Outer Layer. Your outer layer, or shell, is your weather protection.
4. Step 4: Insulated Gloves, Boots and Hats.

Beat the heat with Under Armour HeatGear® apparel. Whether you're going the distance on the running track or pushing your body to its limits at the gym, sweat-wicking HeatGear® material ensures you stay cool and comfortable while focusing on smashing through your personal best.

COLDWEAR promises good quality and value-for-money cold weather gear, combining innovative fabrics for keeping warm yet looking "cool" in the latest range.

Our Team's Winter Jacket Picks

• Best Overall Winter Jacket: The North Face McMurdo Parka.
• Best Value in a Winter Jacket: REI Co-op Stormhenge Down Hybrid.
• Most Versatile Parka for Everyday Wear: Patagonia Tres 3-in-1 Parka.
• Best for Performance Use: Rab Neutrino Pro.

Under Armour is a large, global company, however, and the question of where its products are manufactured is more complex. Currently, most of UA's products are still made overseas, particularly in China and other Eastern nations.

If you're looking for quality performance pieces without the high price tag of some other higher-end brands, look no further than fan favorite Under Armour.

Today, Under Armour is a leading developer, marketer, and distributor of branded performance apparel, footwear, and equipment. The brand offers state of-the-art products designed to help athletes perform better, including moisture-wicking fabrics, silhouettes, and color offerings for men, women, and youth.