The Castelli Sorpasso RoS Wind long cycle trousers for men is the ideal trousers for temperatures between -5 and 10 degrees in dry conditions. Gore-Tex Infinium Windstopper and Nano Flex 3G fabric for optimal protection These cycling shorts by Castelli give you good protection against the cold and riding wind. The upper legs are lined with Gore-Tex Infinium Windstopper material, which prevents the cold wind from penetrating the trousers. This keeps your legs warm while cycling. The rest of the trousers is made of Nano Flex 3G material. This material is soft, stretchy, warm and has a water repellent layer to stop splashing water. The ideal temperature to use these trousers is between -5 and 10 degrees. Progetto X2 Air chamois The Castelli Progetto X2 Air chamois is the ideal chamois when you make long rides on your bike. This pad is designed to protect your skin and has the right thickness to protect you regardless of your time in the saddle. The top layer is made of microfibre that can stretch in 4 directions and has no seams to create minimal friction while cycling. The foam used has been perforated by Castelli to make it breathable. The chamois has two different sections to give you more support where you need it most. Reflective panels ensure high visibility. To make sure you're highly visible to oncoming traffic during the dark winter months, reflective panels are placed on the back of the ankles. This way you will not easily be overlooked from behind. Here you will also find a zip which makes it easier to put on and take off the trousers. This Castelli Sorpasso RoS Wind cycling trousers is the tight for you if temperatures below freezing don't stop you.