Castelli Thermoflex Knee Warmers

Believe it or not, your knees can get cold, so Castelli designed the Thermoflex Knee Warmers to protect them when you're slicing through chilly conditions. The microfleece lining makes the Thermoflex the warmest knee sleeves that Castelli offers, and the upper silicone gripper keeps them from sliding down and cramping your pedaling style.

Best Price: $17.98 on sale from

Competitive Cyclist
Backcountry

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