Castelli use the best winter membrane fabrics on the market but still find themselves wanting more breathability. That's why they invented 7x(air).
Starting with a fully wind and waterproof external layer and then quilt it to a fleece inner layer using the Trapunto technique. This results in an extremely stretchy wind-resistant fabric, but the stitch holes give just the right amount of air permeability and allow for a continuous exchange of air on the inside of the garment, which carries away moisture much better than fully sealed fabrics.
This actually makes it warmer because there's less unwanted air flowing on the inside of the garment. There must be a downside, right? You definitely wouldn't take this out on a rain day, since rain will come through the quilting stitching, though the fabric is DWR treated and will shed light spray. But it's ideal for your five-hour base fitness rides as well as your one-hour lunchtime world championship rides. Breathability is good.
With the double-layer front you have far greater control over ventilation, and when you're working hardest you can open the external zip to allow airflow to dry the thermal layer. It's hard to imagine until the first time you crest a hill and close the zipper back up and realize you're totally dry. You've never felt anything like it.
Also coming from the alpha jacket are the innovative wrist and waist closures. The 3d knit fabric looks and feels like neoprene at first glance, but it's a fully breathable woven stretch fabric that dramatically improves these critical areas of the jacket.
WESTBROOK CYCLES DELIVERY NOTICE
FREE when you spend over £50.00 in a single order
Otherwise it's typically £3.99 per order
Delivery should be expected between 2-3 working days unless stated on product page.
Approximately 4-10 working days depending on country
via Parcelforce Signed Delivery (fully traceable service). Please add items to the basket to calculate delivery for desired country.
If your country isn't listed for delivery at checkout please contact us.
Delivery of Bikes
We ship all our bikes free of charge within the United Kingdom (excl. Jersey and the Channel Islands at this time) and all our bikes come pre-assembled with just a few tweaks required (Please see our Bike Build Instruction page for details of assembly required).
All our bikes undergo a safety check before being re-boxed for shipping which can during busy periods take a little longer to complete so whilst we aim to ship all our bikes within two working days of the order please allow for additional time for this process.
All our consignments irrespective of the carrier require a signature upon delivery, deliveries are typically made between 08:00 and 18:00 so please bare this in mind when choosing a delivery address.
We do try when possible to reuse packaging from our own suppliers in order to send purchased items to our customers, we ask if the packaging is still in good condition after you've received your goods then please try to use it again or recycle if not possible.