Description of Patagonia Biostretch 3 Zip-Neck Top - Men's:
Somehow, the Patagonia Men’s Biostretch 3 Zip-Neck Top cools you down, warms you up, and dries you off. It’s both a standalone piece for hiking and climbing and a baselayer for skiing and mountaineering. How can one pullover do so much? Its stretch polyester fabric features open mesh knit patterns where heat release and airflow are needed most, while the high collar, long sleeves and tight-knit core fabric provide welcome insulation. The Biostretch 3 Top wicks moisture like mad, so you never feel sweaty and cold. Patagonia’s Tube construction eliminates chafing side seams, and its Y-Joint sleeves increase arm mobility. The formfitting style and smooth fabric make layering as easy as rhubarb pie.
Bottom Line: So high-performance, it’s almost a paradox.
This is a great Patagonia baselayer. Wicks sweat well and has a tight fit. I'm 6'2" 210lbs and got an XL in red. The zipper is quality and allows good heat dumpage. The zipper has a slight rubber knob which is great for dexterity when you have gloves on. The fabric mesh changes slightly along the spine for extra wicking properties. Great piece. Get it.
