For those days when most people ride the trainer. We use a fleece-lined GORE-TEX INFINIUM™ WINDSTOPPER® outer layer with a full Polartec® Power Stretch® inner layer to make our warmest bootie ever.

Castelli's entry-level short still needs to be an amazing short in order to carry the scorpion logo. Comfort from quality fabrics, our KISS Air2 Donna seat pad and anatomic construction are brought together with an overall focus on durability.