The light and simple liner under your baggies that emphasizes maximum breathability with Castelli's renowned KISS Air² seat pad. KISS Air² seat pad GIRO? leg gripper with raw edge for comfort and silicone stripes for grip Elastic at waist to hold shorts securely in place Flat-lock stitching Mesh material throughout to provide maximum airflow Weight 124 g (M) Temperature Range 14-35°C / 57-95°F