Castelli Sanremo BTW Speed Suit
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.
Product 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
Occasionally, without notice, manufacturers change product design and/or specifications.
Castelli Clothing Sizing Guide
Use the Castelli size chart to find the best fit for you.
Note: Castelli size their clothing small. To ensure an optimal fit it is recommended you go up one size, compared to your normal cycle clothing size.
Castelli Men's Sizing
S | M | L | XL | 2XL | 3XL | |
Chest | 92cm | 96cm | 100cm | 105cm | 110cm | 115cm |
Waist | 80cm | 84cm | 88cm | 93cm | 98cm | 104cm |
Hips | 94cm | 98cm | 102cm | 107cm | 112cm | 116cm |
Inseam | 82cm | 83cm | 84cm | 85cm | 86cm | 87cm |
Castelli Women's Sizing
XS | S | M | L | XL | |
Chest | 79cm | 84cm | 89cm | 94cm | 99cm |
Waist | 63cm | 68cm | 73cm | 78cm | 83cm |
Hips | 87cm | 92cm | 97cm | 102cm | 107cm |
Inseam | 75cm | 76cm | 77cm | 78cm | 79cm |
Read our clothing size guide for more information on sizing.
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Castelli Sanremo BTW Speed Suit
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, we offer a fast high quality service, with a range of options from free delivery on orders over £30, next day and convenient click & collect from one of our stores. Simply select within the checkout.
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 365 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.