| Smartwool Intraknit Merino 200 1/4 Zip - Men's Black/White Extra Large SW016260960-XL Smartwool Intraknit Merino 200 1/4 Zip - Men's Black/White Extra Large SW016260960-XL. This Smartwool base layer is 3D-mapped for a near-custom fit and freedom of movement. Its engineered construction helps enhance your performance with a lighter... more | | $140.00 FREE shipping go to store |