Castelli Nanoflex+ Knee Warmers

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The Castelli Nanoflex+ Knee Warmers improves on Castelli's industry-leading Nanoflex technology. The Nanoflex+ design adds inserts to the back of the Nanoflex fabric that boosts flexibility and also improves water resistance. Silicone grippers help to maintain the perfect fit while the 8 to 22˚C temperature range makes these warmers highly versatile.

Castelli Nanoflex+ Knee Warmers

Building on a legacy of performance, the Castelli Nanoflex+ Knee Warmers boost comfort and insulation while also offering water-resistance. NanoFlex fabric provides comfort, insulation and breathability alongside a level of water-resistance that is certainly appreciated in light showers.

A new addition to these knee warmers is the Nano Light inserts on the back. These inserts provide extra stretch and comfort without compromising warmth or water-resistance. Double-sided silicone grippers keep the knee warmers firmly in place under your bib shorts and the wide 8 to 22˚C temperature range makes these some of the most versatile items of clothing in any cyclist's wardrobe.

PLEASE NOTE: When selecting the correct size for knee warmers we recommend you choose the same size for knee warmers as you would for bib shorts as the leg hole openings will be the same size.

  • Water-resistant thermal and breathable
  • NanoFlex fabric
  • Nano Light insert on back for extra stretch, bringing better fit and comfort
  • Double-sided silicone grippers to keep the warmers in place
  • Temperature range: 8-22˚C


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