2.7 oz 100% Polyester
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Here's what other sites are saying:
Just as breakfast is the most important meal of the day, the first layer you put on before a full day of ripping turns is the most important component of your wardrobe. Under Armour designed the Men's Base 1. 0 Crew to help you stay warm and dry and to allow you to move with complete freedom. And at just under three ounces, the 1. 0 is the lightest baselayer offered by Under Armour, making it an ideal choice for spring slush and moderate weather. The four-way stretch polyester absorbs sweat and dries rapidly, which helps you avoid sweat-soaked chills after you hike for some fresh tracks. Concerning next-to-skin comfort, the ergonomically placed flatlock seams ensure you'll stay chafe-free while the raglan-style sleeves eliminate unnecessary bulk. Plus, the Armourblock odor control technology keeps the man stink away so you can mingle in the apres scene with confidence.
- Backcountry.com refers to the men's version
Built for fast-paced activities in cool conditions, Under Armour's Base 1.0 features grid fabric against the skin to regulate your core temperature and manage moisture, while the smooth outer surface lets you layer with ease.
- EMS refers to the men's version
Ideal for when temperatures or exertion levels are higher, Under Armour Men's Base 1.0 Lightweight Crew Shirt is engineered to keep athletes warm and dry. Base 1.0 is Under Armour's lightest weight base layer, made to regulate your temperature with maximum moisture transport and minimum bulk, enabling optimal performance in a variety of conditions. Fabric Tech: 2.7 oz. 100% polyester Thermal Grid fabric.Base 1.0 warmest, lightest, driest.Super-lightweight layering for cooler temperatures and higher activity levels.ColdGear Thermal Grid base layer fabric is constructed with a network of grid channels that trap more air using less yarn, making it incredibly lightweight and quick drying while keeping your core temperature regulated, enabling maximum performance in a variety of conditions. Strategically placed ergonomic seams add to overall comfort, by reducing abrasion in high impact areas. Fitted; contoured fit designed to be very close to the body, without the constriction of compression. ColdGear wicks moisture from the skin and circulates body heat, keeping athletes warm, without weighing them down. Built with flat lock seams that feel smooth against the skin and prevent chafing. Raglan sleeve construction allows for total mobility and a full range of motion, while eliminating shoulder seam abrasion points. ArmourBlock technology stops odor causing microbes for maximum scent suppression.Import.
- Campmor refers to the men's version