MOUNTAINEERING TECHNOLOGY FOR THE BIKE
We looked to the world of ski mountaineering racing, where the competitors obsess over weight even more than we cyclists do, yet their insulation is a matter of survival, not merely comfort. And with ski mountaineering being an insanely aerobic sport, breathability is paramount.
The construction of this jacket is similar to that of an insulated alpine shell, with an insulation layer sandwiched between woven inner and outer layers. Unlike most mountain jackets, though, the woven shell isn't completely windproof, instead, we've left a small amount of permeability.
The small amount of air that gets into the jacket picks up the moisture and evaporates it more efficiently than any membrane fabric available. The middle layer is a puffy insulation layer that we make in polypropylene partly because it's insanely light (specific gravity 0.6g) but also because it won't pick up moisture from either sweat or rain. These limited-stretch fabrics require a new cut, so this piece fits slightly looser than your race jacket. If your winter goals are new Strava PRs rather than winning races in the spring and summer, you're better served by the Alpha Light Jacket or a Perfetto. But if your goals involve a real rather than virtual finish line, this jacket will make your winter riding better.
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.