X-Bionic EFFEKTOR RUN SPEED LS - Base Layer - Men's - black/charcoal

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Use: running, outdoor activities



  • High performance base layer
  • Tight, ergonomic fit
  • Optimal muscle compression
  • Intake heat regulation: sweat wicking and cool
  • Ideal for running in cold weather


  • Retina
  • SweatTraps®
  • 3D-BionicSphere®


  • Improves muscle performance
  • Cools as you sweat and heats when you're cold
  • Optimal body temperature
  • High rise with Ideo-Waistband and Shoulder-Flex-Zone in the shoulder area to prevent unpleasant rubbing which irritates the skin
  • Kidney Ribs that simultaneously isolate the kidneys and pelvic area


  • 97% polyamide
  • 3% polypropylene


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ISO-SHOULDER: Creates an insulating layer to keep the cold out in the most vulnerable areas. The soft wave structure of the material allows channels to stay open and continue providing space to store warm air. This exceptional protection helps the garment prevent the upper body from cooling down.


AirComplex-Zone: This design helps wick excess sweat for optimal freshness. The most important nerve fibres of the organs are directly below the twelfth rib. This sensitive area is protected by special channels, where warm air is trapped to help insulate from the cold.


3D BIONIC SPHERE®: This system leaves a thin layer of moisture on the skin without it bothering the skin. It wicks away excess sweat, enabling it to evaporate through the dynamic thermal layer. The unique patented 3D-BionicSphere® system preserves resources to help you perform better. Less energy is spent regulating body temperature, leaving you with more energy for exercise.