Spatzwear Basez Extreme Base Layer

Experience uncompromised performance with the Spatzwear Basez Extreme Base Layer, engineered from the ground up for serious cyclists. This technically sophisticated garment combines strategic fabric zoning that delivers targeted warmth and breathability precisely where your body demands it most. The elevated neckline creates an effective thermal seal against biting winds, while integrated thumb loops eliminate uncomfortable gaps between gloves and sleeves. An extended rear panel provides crucial insulation across your kidneys and lower back—areas prone to heat loss during intense efforts. Developed and validated by Olympic-level athletes, this base layer conquers severe weather without sacrificing mobility or adding unnecessary bulk.

The Spatzwear Basez Extreme Base Layer redefines winter cycling comfort through intelligent panel construction that responds to your body's actual thermal requirements. Engineered with differentiated fabric weights—heavier protection across the chest and front arms to combat wind-chill, lighter zones where ventilation matters most—this base layer simultaneously retains warmth and evacuates moisture with precision. The extended collar design seals out cold draughts whilst preserving full neck mobility for aggressive riding positions. Born from professional racing experience, this garment employs dedicated yarn and weave technologies specifically calibrated to each body zone's distinct demands. Unlike conventional base layers that compromise between warmth and breathability, the Basez Extreme delivers both without sacrifice, making it the foundational layer serious winter cyclists have been waiting for.

• Material construction: Polypropylene yarn with seamless manufacture and internal weave/waffle structure
  
• Thermal function: Traps warm air next to the skin and maintains optimal temperature in cold conditions
  
• Moisture management: Inside weaves and waffles actively pull sweat away from the body
  
• Wind protection: Breathable membrane panel across the chest
  Fit profile: Long arms, dropped rear, short front, high neck, close but unrestricted cycling fit
  
• Testing: Proven over four winters in the UK, Alps and Pyrenees
  Use case: Deep-winter base layer for the coldest riding conditions