Royal Robbins The Duke 1/4 Zip
Here's what other sites are saying:
The synergistic blend of acrylic and wool of the Royal Robbins Men's The Duke 1/4 Zip Performance Shirt offers the best of both natural and synthetic worlds. All-natural wool offers reliable warmth without bulk. The synthetic fibers provide low moisture absorbency, dry quickly and offer a soft hand.
- Altrec Outdoors