Castelli have been making teir tights better and better for colder weather, and at the same time they've seen a drop-off in demand for 3/4 knickers. So they fill that gap with the LW Bibtight. LW stands for Light Winter, the conditions that are becoming more and more common.
The upper part has been made using the directions of professional athletes with the Thermoflex fabric that keeps your thighs and intimate parts warm, while a thinner non-brushed water-repelling Lycra® added to the lower legs. To keep the lightweight feel zippers have been avoided at the ankles. Finally the Progetto X2 Air Seamless seat pad has been used as this will be your go-to piece for long fall and spring rides.
The light winter cool-weather tight for when you don't want full thermals
Thermoflex upper portion, Nano Flex Light fabric below the knee
Anatomic cut taken from the Free Aero Race Bibshort, Castelli's top race short as used by Team Ineos
Lower leg is non-brushed to prevent overheating yet features a water-repellent finish to protect from road spray