Castelli Prize Bib Shorts The Castelli Premio Bib Shorts redefine comfort and performance for long distance outings. Precisely designed to guarantee muscle support, speed and durability, these shorts are your ideal companion to overcome any challenge. Material : Elastic fabric with different thicknesses Fabric technology : Fabric that weighs 30% less than comparable ones Breathability : Flat straps with perforated panels Adjustment : Non-slip elastic band at the end of the leg Weight : 148g Progetto X2 Air Seamless chamois for seamless comfort Recommended temperature : 14°C - 38°C / 57°F - 100°F