ECWCS Gen III Mid-Weight Underwear Top – ¼ Zip

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Coyote Brown
Apparel: Base Layer
Apparel: Long Sleeve

Level Two of the ECWCS (Extended Cold Weather Clothing System) Rothco's Mid-Weight Thermal Shirts are an essential base layer for military and tactical professionals.  The highly breathable, moisture-wicking polyester and spandex material is designed to protect from the harshest elements. Rothco’s mid-weight underwear tops feature a zip up collar, long back tail, and thumbholes in the sleeves for maximum comfort and fit. The grid fleece fabric features anti-odor properties for long-lasting wear.


  • breathable, Moisture wicking Grid Fleece Material Ideal for layering
  • Part of the Army's Extended Cold Weather Clothing System (ECWCS)
  • Zip Collar Allows The Undershirt to Be Worn As a turtle Neck as Well
  • anti-odor Properties for long lasting wear
  • Long Backtail For added Coverage
  • Thumb holes keep the sleeves in place all day


  • 97% Poly / 3% Spandex
  • AR 670-1 Compliant

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