The Lightweight Power Wool™  Baselayer top is an upgraded baselayer that uses Polartec's sustainably harvested wool in combination with a synthetic exterior to blend the temperature regulating benefits of wool with a quick-drying polyester exterior. This fabric is super lightweight, and features thumbholes in the cuffs, making for an enjoyable layering experience.
 
Our wool line was named the Jay collection to honor the great pow that region captures and the many lines you'll be able to score because you've added wool to your layering system. 
 
Available with a fitted hood, with a turtlehood, or as a crewneck.
 
A Women's Medium weighs in at 4.7 oz.
 
This top is made of 64% Polyester & 36% Wool.