Castelli Thermoflex 2 Knee Warmer Black, S

Throw on your favorite bib shorts and grab a set of the Castelli Thermoflex 2 Knee Warmers and enjoy a bit of extra protection from the cold when you're cycling in the shoulder seasons. The Thermoflex fleece fabric is warm, stretchy, and soft, and is constructed using flat-lock seams in order to alleviate any irritation or discomfort.