BeHot: the active technology that transforms movement into warmth! This bib tight incorporates the BeHot technology, an innovative fiber that generates and stores heat when stretched, activated by your pedaling movements. The result: you feel a constant warmth that effectively shields you from cold down to a perceived -10degC / 14degF*. This bib tight features the new ULTIMATE Ekoi 8h chamois. Designed with a shape specially adapted to the female anatomy, it offers perfect comfort for long rides. To ensure better joint flexibility, a lightweight and ultra-breathable fabric panel has been cleverly placed behind the knee. *0degC / 32degF outside