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Smartwool Men's NTS Mid 250 Zip T Base Layer - Deep Navy

Smartwool's best selling, and warmest, base layer, just got a little more refined with an improved fit, chafe-free seam construction and panels that offer more comfort with a pack.

Available in men's US sizing - see size chart for correct fit!


  • Smartwool apparel
  • For men
  • Style: NTS Mid 250 Zip T Base Layer / SS603092 
  • Colour: Deep Navy
  • Fit: Form
  • Interlock knit
  • 25cm centre front zipper
  • Shoulder panels eliminate top shoulder seams
  • Flatlock seam construction designed to elimiate chafing
  • Materials: 100% Merino wool
  • Machine washable
  • Country of origin: Vietnam
A Bit About The Brand / More Info

SmartWool is an American company founded by New England ski instructors Peter and Patty Duke in Steamboat Springs, Colorado in 1994 and acquired by the Timberland Company in 2005. Their products are primarily made from treated merino wool offering moisture-wicking performance and odor-reducing, anti-microbial properties.