SW-603 M
This Merino Wool from Smartwool feels like a second skin whether it's bone dry or soaked through. It will keep you warm when you're sitting on a ridge waiting out a storm or plowing through snow drifts. And no one will ever know how long you've worn them because they just won't smell. The Zip-T uses shoulder panels instead of seams, anti-chafe flatlock seam construction and a form fitting interlock knit with UPF 50+ protection.
Medium - Chest 39" - 41" Arm Length 32" - 33"
Large - Chest 42" - 44" Arm Length 33" - 34"
X-Large - Chest 45" - 48" Arm Length 34" - 35"
XX-Large - Chest 49" - 51" Arm Length 35" - 36"