SPECIALIZED

Women's Therminal™ Alpha Jacket
Black / L
Loading store availability...
SPECIALIZED
When you ride in frigid conditions, your options for lightweight insulation under your outerwear are limited. It's typically been an fleece jersey with rear pockets that only adds to bulk and weight. Insulation with a high warmth to weight ratio, like down feathers or polyester fiber-fill are ideal, but those materials need to be encapsualted with a coated fabric to contain them, cutting breathability down to zero. Our solution is Polartec Alpha insulation that provides insulation without the need to encapsulate, giving you unimpeded breathability for a warm, dry ride. The outer shell is lightweight and uncoated, furthering the flow of perspiration and allowing the piece to packable when you need to de-layer when things get too hot. The jacket is designed to be worn under an outer jacket, such as our Deflect H2O pieces, so the fit is close to the body to eliminate any bulk. An under-the-helmet hood provides an added wind layer and traps heat in were you lose it, at the top of your head, and we finish off the neck and wrists with reflective binding for visiability in case you're caught out after sundown.
Join our list. We’ll email your code and auto-apply it to your cart. *Discount taken at checkout. Cannot be combined with select price-restricted items. See cart for details. Bikes and sale items are excluded.
The bike has lived up to all the hype! Flight Attendant frees up more brain bandwidth to focus on dropping my friends!
Nice gravel shoe. We got these for a Europe bike trip with lots of possible walking ( coffee shops , sightseeing). I have been breaking them in and like them so much that they will be my permanent gravel bike shoe. (Used my Mtb shoes before). Really like the room in toe and while not as stiff as my Mtb or road shoes, they are awesome for long rides.
from the color to the style and the fit! Perfect!
The S-Works Prevail 3 is one of the most comfortable bike helmets I’ve worn. The fit system adjusts perfectly, and once I ratchet the MIPS cradle to my head, the helmet almost disappears — it conforms so well that I barely notice I’m wearing it.
Ventilation is excellent. Riding in moderate weather around the mid-70s, my head stayed cool and comfortable without overheating. The airflow design really works.
Thankfully, I haven’t had to test the helmet in a crash, and I hope I never do. But the build quality and design give me a lot of confidence in the protection it offers. Highly recommended.
Very impressed by the whole experience with Sierra Bicycle Supply! The frameset was just as shown - brand new and gorgeous. It shipped fast with tracking info. Great pricing on the frameset and I picked up other stuff for my build. Great overall experience - highly recommended!!
Amazing bike at super price. Free shipping. Highly recommend buying from these guys.
Here is how I am using it.
- Customizable displays for ...
- Heart Rate Sensor
- Garmin Pedal Power Meters
- Lights control
- Cadence Sensor
- Speed Sensor
- DOES NOT WORK WITH SAMSUNG WATCH 8 CLASSIC
- Records Route Creation but need to be careful with saving rides as not doing two rides back to back = lost
- does not come with a one hundred twenty page manual.But I was able to find a pdf file online