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Model Number:

The Zoot Ultra WRKSnano ThermoCell Vest has it from the elements WITH warmth, mobility, and breathability. WRKSnano panels along the front, extending over the shoulders to the upper back, deliver lightweight wind- and water-proof protection for your core. A back vent offers breathability, while back THERMOcell stretch panels provide optimal range of motion. Additional features include a front zipper pocket for secure storage, drawstring waist for an adjustable fit, and reflectivity for visibility in low-light settings.


  • Black/Volt (BKVLT)


  • WRKSnano fabric for wind and waterproof front construction to help protect you from the elements
  • Left chest zip pocket for secure storage (approx. 4.5"W x 5.5"H)  
  • Full zip front with zipper garage for adjustable temperature control
  • THERMOcell stretch panel hybrid for warmth and breathability in back
  • 360 reflectivity for increased visibility in low-light settings 
  • Drop tail bottom hem with drawcord for an adjustable fit
  • "V" notch on back collar for superior movement


  • Main Body WRKSnano (100% Polyester), a lightweight wind and waterproof fabric with some stretch for freedom of movement
  • Back Panel THERMOcell (100% Polyester), a synthetic stretch fabric that provides warmth and breathability

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

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