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Technical Details For The Castelli Alpha RoS Jacket

4517502 ROS - Rain Or Shine Engineering Provides Insulation And Breathability For Cold Dry Conditions With Great Protection During Wet Rides.

Articulated Collar For Better < Fit


Castelli Alpha ROS Jacket

  • €183.26
£168.00 £280.00
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Hassle free returns

At Hargroves Cycles our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 90 day online return policy* in which you can receive a full refund. Any item including bikes (but with the exception of food) can be returned to us for any reason provided it is received by us in an unused condition in or with its original packaging. Unless the return is due to a faulty product or an incorrect delivery on our part you will have to cover the cost of the return. If you believe that we should be covering the cost of the return please contact us in advance to discuss the available options.

Small Items - Parts & Accessories

Include the returns form and send it to us with the delivery company of your choosing - easy peasy!

Larger Items - Bikes / Bulky Items

If you wish to return bikes or bulky items such as forks or turbo trainers please contact our Returns Department to arrange a special courier collection. Contact us on our email address We can arrange collection for you from your home or work address, using our couriers ( You may be required to cover postages costs )

* Bulky Items Include - Bikes - Wheels/wheelsets - Turbo Trainers - Framesets - Forks - Groupsets - Car racks - Child Seats

Warranty Claims

Please contact us prior to returning so we can ensure the fastest suitable resolution for you:

Castelli Alpha ROS Jacket

Season : Autumn Winter 18

Brand : Castelli

Code : CS17502BLK

Weight : 0.2KG

technical details for the castelli alpha ros jacket 4517502

ros - rain or shine engineering provides insulation and breathability for cold dry conditions with great protection during wet rides.

articulated collar for better fit

gore windstopper 150 fabric is windproof highly breathable and offers great protection from rain and spray

seam sealing on the shoulders with a reduced seam main body and double stitching work to keep you dry in all but the worst conditions

dual layer alpha construction separates insulation and protection to create better ventilation moisture evaporation and breathability

part covered waterproof ykk vislon zipper lays flat and slides easily

raw edge waist follows the body contours lays flat and is low bulk

raw edge wrists create a perfect interface with castelli gloves

the stretch fabrics combined with the latest advanced patterning creates a close fit on a wide range of body types

back ventilation for greater comfort

castelli silicone text gripper at waist keeps the jacket from riding up

front zippered key pocket - with waterproof zip

3 large open rear pockets with laser cut reflective drainage patterning

sizes men's s-3xl

weight 515 g (size l )

castelli comfort range -5 to 10 c

  • €183.26
  • $178.24
  • $252.86
  • kr1,932.19
  • kr1,696.13
  • kr1,364.08
  • $272.77
  • ¥18,755.12
Delivery Informationa

All parts and accessories orders over £40 to Mainland UK addresses will be dispatched FREE via a tracked 48hr service (orders under £40 will incur a £4.50 delivery charge).

Bikes over £350 are dispatched FREE via TNT with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).

*Bikes with a value of under £350 will incur a delivery charge of £15

Click And Collecta

We want to make shopping with Hargroves Cycles as convenient and easy as possible. That's why absolutely everything Hargroves Cycles is available via Click & Collect so you can order anything online and pick it up in any of our stores for FREE.

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Price Matcha

We all hate the feeling of buying something only to find out we could have got a better deal elsewhere. That's why if you see one of our competitors offering a lower price on a product we have in stock, let us know and we'll match it.

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Home Clothing Castelli Jackets & Gilets

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.