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MORE PERFORMANCE WITHOUT CHEATING. Chilled legs sustain injuries easily. The X-BIONIC® LEG PK-1 Energy Accumulator offers targeted protection from the cold because your muscles lose warmth differently in different areas. When pedaling the knee bends repeatedly. Traditional leg warmers spread thin with that movement. WIth LEG PK-1 Energy Accumulator the system works like an accordian with chambers and ducts that fold and unfold, allowing our ExpansionKnee™ to gain insulative attributes. At the sam time, the X-BIONIC® Partial Kompression reduces muscle vibration and supports muscles and joints. That keeps legs even on freezing days powerful and optimally temperature-regulated.

ExpansionKnee™
The accordion principle behind the ExpansionKnee™ improves its insulating character rather than losing it when the knee is bent. A highly flexible system of chambers and channels provide insulation by storing warm air inside.

X-BIONIC® Partial Kompression
A new benchmark in compression technology. Partial Kompression by X-BIONIC® utilises the advantages of compression without neglecting cooling.
 
AirConditioningSpot™

AirConditioning Channel®
The AirConditioning Channel® is a ventilation system of channels that flow around the body, continuously carrying away moisture and warmth. It allows air to flow to body regions not normally accessible by fresh air circulation.

Self-adjusting cuff
The wide active drawstring fits to every leg size without slipping or constricting.