Miracolo LS Baselayer

A breakthrough in baselayer innovation, the Miracolo represents the meticulous craftsmanship you expect from Castelli’s premium performance level apparel. Made to keep your core warm on high intensity, coolweather rides, it matches the natural performance and warmth of Merino wool with the durability of nylon and the stretch of elastane. Streamlined in fit to allow maximum wicking and comfortable layering, its minimalist, entirely mesh construction stops moisture at the source while providing exceptional ventilation. Athletic fit.

• 38% polyamide/32% elastane/30% Lana wool blended fabric for warmth, durability, and stretch
• lightweight, open mesh construction provides exceptional ventilation and minimizes bulk for a better under-jersey fit
• minimalist finishing at collar, wrist, and waist
• raglan sleeves for mobility and to avoid seam placement under bib straps
• ideal for temperatures between 40-60 degrees
• athletic fit

Castelli baselayers are very fitted. Order one size up for a looser fit or if in between sizes.

Athletic fit – size up for a looser fit.

See our guides to fit and rise, and sizing tips and info.

To get the most out of your performance wear, we suggest that you wash on delicate cycle using cool temps, mild detergent, with like colors. Line dry if possible or on low heat in your dryer. Don't iron or dry clean.