Here's what other sites are saying:
Manage sweat and move freely during aerobic activity. Updated with a closer fit and highly breathable Polartec Power Dry fabric, our midweight base layer will keep you dry and comfortable, while a touch of stretch spandex enhances mobility.. . . . T2 Techwick: The extra warmth you need for fall activity and the perfect base layer for winter. Polartec Power Dry bi-component jersey/mesh knit fabric for superior wicking and fast-drying performance-keeps your skin dry when you sweat. Inner fabric surface moves moisture away from the skin; outer fabric surface dries quickly-moves at least 30% more moisture away from the skin than single-component fabrics and dries twice as fast as cotton. Highly breathable, odor resistant, soft and comfortable next to skin. Stretch fabric enhances freedom of movement. Versatile: Wear as a single layer or under other garments for a wide range of activities from running to skiing. Thumbholes at cuffs for hand warmth and easy layering. 11 in. zipper with draft flap and zipper garage for easy on/off, ventilation, and comfort against the skin. Flatlock seams for nonchafing comfort and a smooth fit. Fitted. Front length: 28 in.. Machine wash cold, gentle cycle-do not use fabric softeners; tumble dry low. Made in El Salvador.
- EMS refers to the men's version