Castelli Sanremo BTW Speed Suit Black

Fast made faster.
This road speedsuit brings all the aero performance of a TT suit with the comfort, function, and moisture management needed for the road. Over a decade of development on the roads of the WorldTour and in the wind tunnel.

This is the suit that started a revolution. Before the San Remo Speedsuit made its debut in 2011 at Paris-Roubaix, the thought of wearing a speed suit for anything but a time trial seemed insane. But after it achieved victory in its first outing, the way cyclists dressed for racing changed forever. In its latest evolution, the San Remo BTW Speed Suit is even faster. On top we use our new redesigned Aero 7 Jersey, which is paired with the reduced-seam bottoms from our Body Paint 4.X Speedsuit, a combination that is slippery against the wind.

As always, the suit opens completely in the front for added ventilation and easier nature breaks and has three pockets on the back for storage. We've also used our Progetto X2 Air seat pad for comfort during the toughest rides or races. For extra aerodynamic gains, pair this suit with our Bolero SS base layer. Extensive hours in the wind tunnel have shown this combination to be the fastest yet.

Maximum Technology For Supreme Comfort
Constructed in two components, each dedicated to a specific purpose, that together create the most comfortable seat pad on the planet.

• Skin Care Layer: Seamless, bacteriostatic layer made to adapt to the shape of your body and saddle without any folds in the fabric.
• Cushioning Layer: Seamless Integrated Technology (S.I.T.) Perforated Viscous Comfort Zone.

Rosso Corsa
Our Rosso Corsa label is only applied to the highest-level products we make. Every thread and fibre, every curve and contour is obsessed about. Rosso Corsa represents a categorical breakthrough in cycling innovation and the meticulous craftsmanship you expect from Castelli's performance-enhancing apparel.

Features

• CFD-based fabric placement and seam construction
• Castelli engineered Air_O Stretch fabric for breathability, comfort and perfect fit
• Engineered for aero efficiency at 30 to 55 km/h
• Fabric optimized for aerodynamics and breathability
• To be paired with Bolero SS base layer for added aero gains
• Airflow shoulder construction
• Elbow-length stretch sleeves with raw-cut edge
• Reduced seaming on bottom for maximal aero gain
• Progetto X2 Air Seamless seat pad
• Contains bluesign certified fabrics