Don’t just stay warm in cold work conditions, do it in comfort. Men’s Performance Rib-Knit Thermal Underwear Bottom are made from soft, rib-knit 5.5-oz., 100% polypropylene that’s both lightweight and effective. Ribbed cuffs. Navy color. Specify size: S-3XL or Tall M-2XL in the drop-down menu above.
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