Pushing the Limits of Speed Like the planes that inspired the phrase, the Castelli BTW Speed Suit uses cutting-edge research and construction in the pursuit of speed: CFD analysis, 3D test mannequins, fabric research and testing, numerous wind tunnel tests, and then testing in the World Tour. At the beginning of the research project, Castelli were set to sacrifice comfort in the name of speed, but in the end they kept it fully breathable, fully stretchy fabrics. There's a little more Lycra, so you won't stay quite as dry, and the shoulder fabric is slightly heavier. And it doesn't have the Sanremo front opening, so your pee stops will be a bit more challenging.

• Made to be the fastest option for high-speed road racing
• Dimpled shoulder and sleeve fabric for boundary-layer aerodynamics
• Smooth body for reduced skin friction and laminar flow
• Premio-based short portion for aero comfort
• Progetto X2 Air seamless seat pad for all-day comfort
• 2-way YKK zipper
• Lasered tone-on-tone logos at back of leg
• Stitched scorpion patch at top of back
• Sleeves to hold numbers over 2 rear pockets
• Temp Range: 14°-32°C / 57°-90°F
• Weight: 228g

PLEASE NOTE: Purchasing this item may incur NZ customs import duties. See our Store Page for further information. DELIVERY: Please allow 5-10 working days for postage.