Castelli Women's Velocissim 2 Thermal Sock Triathlon Wetsuit Chamois Butt’r Original is a

Chamois Butt’r Original is a non-greasy skin lubricant developed by cyclists for use with all chamois

Crafted with long ride comfort at the top of the list

plus half sizes 41

With the Kask Mistral Aero Helmet

Clamp Diameter: 31

Castelli Women's Velocissim 2 Thermal Sock Triathlon Wetsuit Chamois Butt’r Original is aDesigned for dedicated athletes, the Castelli Women's Velocissim 2 Thermal Sock delivers superior performance and comfort. With thermal technology and a snug fit, these socks keep feet warm and supported during intense workouts. Made with top quality materials, they are built to last and enhance performance on the field or track.