The design of the Airflow-guide grooveDuring the long-term cycling period, the perineum of cyclists is in a harsh environment for the sweats and high heat during exercises will be concentrated in a place to result in the expansion of the blood vessels as well as serious soft tissue contusion, making you unbearable. Therefore, if you would like to enjoy comfortable cycling, the perineum must be kept cool. The airflow-guide groove designed on the saddle surface is to ensure that the air can flow through the key area and takeaway heat to keep the perineum cool all the time and solve the expansion of the blood vessels and soft tissue contusion.