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5.11 Performance Winter Mock

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5.11 Performance Winter Mock [511 40126]
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The French Terry knit and new re-engineered neck and cuffs trap warm air close to the body while the poly/nylon/spandex blend wicks away moisture in higher aerobic activity which is critical in colder outdoor environments.


Performance Winter Mock

The Performance Winter Mock was designed to act as a superior bottom thermal layer in cool or cold environments. Crafted from French terry knit fabric in a nylon/polyester/spandex blend, the Performance Mock offers an ideal combination of warmth, comfort, and flexibility. Designed to trap air against your body, the Performance Mock keeps your body temperature constant without adding weight or bulk, allowing it to be worn comfortable under your TDU® or PDU® duty wear. A reinforced collar ensures a secure fit without constriction, ensuring a neat and professional appearance in any setting. Moisture wicking action pulls wetness away from your skin, an underarm gusset ensures full freedom of movement, and flat-lock seams prevent chaffing. Whatever your profession, the Performance Winter Mock offers unbeatable comfort and warmth in any climate.


  • Lightweight thermal protection
  • Reinforced collar
  • Moisture wicking, anti-microbial
  • Underarm gussets for freedom of movement
  • Nylon/polyester/spandex blend
  • Sized for 5.11® PDU and TDU duty wear
  • Flat lock seams

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