The Castelli Miracolo Wool Long Sleeve Base Layer pulls an impressive amount of moisture away from your body keeping you dry whilst the merino wool pulls moisture away from your body keeping you warm and the mesh construction stops overheating. This makes this base layer perfect under a jersey for high intensity riding or for layering under a jacket. Merino wool has long been a favourite with cyclists for its natural wicking, temperature regulating, and odourless qualities. For the Miracolo, Castelli has combined merino with nylon for improved strength and elastance for extra stretch. The long sleeve base layer is designed to sit under your outer layers in a way that will mean youll forget youve got it on. A minimalist finish at the waist, collar, and cuffs stops any bunching of fabrics whilst a raglan sleeve design avoids any seams under your bib straps. Key Features Merino wool mesh mixed with nylon and elastane for strength and stretch Minimalist finish at wait, collar, and cuffs Raglan sleeves Woven Scorpion logo 4 15C / 39 59F Weight: 112g (M)