Castelli Miracolo Wool Sleeveless Base Layer The Castelli Miracolo Wool Sleeveless Base Layer is designed for riders who want the natural warmth of merino wool combined with the breathability needed for high-intensity riding. The innovative mesh construction provides excellent insulation while remaining highly breathable, helping regulate body temperature across a wide range of conditions. Unlike traditional wool garments, the Miracolo Wool base layer is designed to stay comfortable even during hard efforts. Original retail value: $100 AUD Key Features Merino wool mesh construction providing natural warmth and breathability Nylon added for improved durability Elastane fibres delivering stretch and excellent fit Minimalist lightweight construction reducing bulk under a jersey Highly breathable design ideal for intense riding Sleeveless cut allowing maximum ventilation Temperature range approximately 8°C to 20°C Lightweight design weighing approximately 126 g The Miracolo Wool Sleeveless Base Layer delivers the comfort and temperature regulation of merino wool while maintaining the performance required for fast training rides and racing. From the World Tour to your door.