$219.99 $349.99

37% Off. Hurry, there are only 2 item(s) left!



When we came out with the original Alpha Jacket, we wrote, Throw out everything you think you know about cycling jackets. We’ve done it once again. So throw out everything you think you know about cycling jackets.

Until now, your cycling wardrobe has consisted of clothing for dry weather and separate clothing for wet weather. You never wore your wet-weather clothing in dry conditions because it was too clammy inside and too flappy outside. And your dry-weather clothing just didn’t hold up to rain. The Gabba and Perfetto family helped bridge that gap, but the Alpha RoS takes it to another level.

We started by keeping everything that made the original Alpha Jacket your favorite dry-weather jacket: the two-layer construction to separate the insulation layer from the outer shell, the double front opening to diffuse the cold air when you open up to ventilate, the excellent breathability, the flat wrist and waist openings, the articulated collar, the insanely soft stretch fabrics, and the great fit.

By using Gore’s new Windstopper® light rain-resistant membrane and DWR treatment, selective seam sealing, careful seam placement and construction, and a waterproof YKK® Vislon® zipper, we’ve made the jacket essentially waterproof while not compromising the characteristics that made it such a great dry-weather jacket.

The outdoor industry has traditionally determined what counts as waterproof: minimum 10,000 mm water column and complete seam taping. But that definition means too many compromises in the overall usability of the jacket, in the softness, in the fit, and in the jacket’s overall ability to keep you dry and comfortable by maximizing breathability. So we set our own definition of real-world usability and went out and tested this on the nastiest days of our Italian fall.

An occasional drop may come in through a seam, but you’re going to stay warm and dry because the jacket keeps nearly all water out from the outside while letting most moisture out from the inside. This jacket feels like a game changer.

It’s a significant step toward Castelli’s goal of making clothing that performs impeccably in the dry but offers complete water protection in the rain. And it will make your riding enjoyable, rain or shine.

  • Rain or Shine engineering provides insulation and breathability for cold and dry rides, with effective waterproofing for wet rides
  • Gore® Windstopper® 150 fabric provides wind protection with high breathability and effective rain protection
  • Seam sealing on shoulders, reduced seaming and double stitching keep you mostly dry
  • Alpha construction separates wind/water protection layer from insulating layer
  • Better ventilation and better moisture evaporation thanks to separate insulating layer
  • Partially covered waterproof YKK® Vislon® zipper slides easily and lies flat
  • Raw-edge waist lies flat and moves with you
  • Raw-edge wrist cuffs lie flat for a perfect interface with gloves
  • Stretch fabrics with advanced patterning make for an excellent close-to-body fit that still accommodates a wide range of body types
  • 3 rear pockets with reflective laser-cut drain holes
  • -5°-10°C / 23°-50°F


    Men's Apparel

      S M L
    Chest 36.2in 37.8in 39.4in
    (92cm) (96cm) (100cm)
    Waist 31.5in 33.1in 34.6in
    (80cm) (84cm) (88cm)
    Hip 37in 38.6in 40.2in
    (94cm) (98cm) (102cm)
    Inseam 32.3in 32.7in 33.1in
    (82cm) (83cm) (84cm)
      XL XXL 3XL
    Chest 41.3in 43.3in 45.3in
    (105cm) (110cm) (115cm)
    Waist 36.6in 38.6in 40.6in
    (93cm) (98cm) (103cm)
    Hip 42.1in 44.1in 46.1in
    (107cm) (112cm) (117cm)
    Inseam 33.5in 33.9in 34.3in
    (85cm) (86cm) (87cm)


    Women's Apparel

      XS S M
    Chest 31.1in 33.1in 35in
    (79cm) (84cm) (89cm)
    Waist 24.8in 26.8in 28.7in
    (63cm) (68cm) (73cm)
    Hip 34.3in 36.2in 38.2in
    (87cm) (92cm) (97cm)
    Inseam 29.5in 29.9in 30.3in
    (75cm) (76cm) (77cm)
      L XL  
    Chest 37in 39in  
    (94cm) (99cm)  
    Waist 30.7in 32.7in  
    (78cm) (83cm)  
    Hip 40.2in 42.1in  
    (102cm) (107cm)  
    Inseam 30.7in 31.1in  
    (78cm) (79cm)  


    What are the shipping costs, and how long are delivery times?

    The shipping costs and delivery times depend on your country and the type of shipment chosen (standard or express). For determining shipment costs and duration simply choose your country of delivery.


    Standard delivery:

    Shipping costs:

    The delivery is free of shipping cost from an order value of $200,00 otherwise shipping costs are $9.99.

    delivery time:

    10-25 workdays


    Express delivery:(EMS, DHL, UPS)

    Shipping costs:

    • 0kg-0.5kg:$39.99
    • 0.51kg-1kg:$45.99
    • 1.01kg-2kg:$49.99
    • 2.01kg-3kg:$54.99
    • 3.01kg-4kg:$59.99
    • 4.01kg-5kg:$65.99
    • 5.01kg-6kg:$75.99

    delivery time:

    3-6 workdays


    International Delivery

    Gowilds ships to over 100 countries.

    Goods are shipped from the China. Does not include delivery charges, local taxes or import duties, if applicable. 

    Before you place your order, please get information about the customs regulation for your country!

    Possible taxes or customs duties must be borne by you and cannot be reimbursed by us! When choosing your delivery country, prices will automatically appear without VAT.


    Returns Information

    We will happily refund or exchange any item purchased on Gowilds if returned to us within 30 days, excluding Gowilds gift vouchers and personalized products except when faulty.

    Returned goods must be unused and supplied with their original packaging, unless the goods are faulty.
    Gowilds will pay the return postage costs for any faulty items.