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Model Number:

If there were a competition for cool-weather performance fabrics, the plush and luxurious material of the Thermopolis LT 1/2 Zip would unquestionably take the gold. Soft on the skin, yet light enough to meet your performance needs, this layer is a great option for training in a variety of temperatures and conditions. Raglan sleeve construction allows for optimal range of motion, while the front zipper provides temperature control. An invisible zip pocket for secure storage, and reflective details for increased visibility. 


  • Blaze (7046)
  • Brick (3193)
  • Black (9090)
  • Bronze (7993)
  • Estate (4693)
  • Heather Iron (9290)


  • Soft, peached fabric for a smooth feel against skin
  • 6.5" zip with lockdown zipper, garage and mesh wind flap
  • 1.5" mock neck
  • Raglan sleeves for optimal mobility
  • Invisible pocket on left sleeve (approx. 3.5" x 4")
  • Thumbholes for additional warmth
  • Flatlock stitching to eliminate chafing
  • Front and back reflectivity for increased visibility in low-light settings 


  • Thermopolis: (92% Polyester/8% Lycra Sueded Jersey Knit), Asics' softest, cooler weather fabric with lightweight stretch and moisture-management qualities to aid in temperature regulation as you run

Apparel Performance Characteristics

Apparel Fit: What's this?

  • Compression
  • Fitted
  • Semi-Fitted
  • Relaxed

Temperature Range °F: What's this?

  • Cold
    • Below 30
  • Moderate
    • 30-45
    • 40-55
    • 50-65
  • Hot
    • above 65

Fabric Thickness: What's this?

  • Thin
  • Medium
  • Thick

Customer Reviews

Comments: This body style has changed dramatically since purchasing 2 years ago. The length in both sleeves and body has decreased by more than 2 inches. Tried a larger size but gained mostly width not length. Had to return it, hope next year the design returns to its origins as thermopolis is great for layering as well as by itself when the temperature reaches the mid 30s.
From: Nathan, Milwaukee, WI