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Part of the Rain or Shine range, on the coldest, wettest days the softshell Castelli Alpha ROS Jacket will keep you warm and dry, yet is breathable and fast-drying for when the weather improves.

Windproof and waterproof thanks to the Gore Windstopper membrane, strong winds and showers are no problem for this jacket. The highly stretchable material allows you full freedom of movement and the multiple-layered construction optimises moisture management and ventilation with the inner layer providing extra comfort and insulation.

The smooth waist panel adds to the great fit and the silicone bottom hem keeps it lying flat for a sleek look. A full-length YKK zipper ensures you can unzip to keep you cool if necessary and the zip is partially covered for added protection from the rain.

Smooth cuffs allow you to comfortably wear gloves on those winter rides and three rear pockets allow you to carry all your essentials, with the added bonus of a security pocket with waterproof zipper.


  • Softshell jacket
  • Windproof and water-repellent GORE WINDSTOPPER membrane
  • Taped seams on shoulders
  • Full-length, partially covered YKK front zip
  • Smooth waist panel
  • Smooth cuffs for wearing gloves
  • Three rear pockets and additional security zipper pocket
  • Silicone bottom hem

Delivery Information

Hargroves Cycles offer Free Delivery for all orders over £9 with in Mainland UK (orders below £9 will be charged £1.99)

Bikes and Bulky items are sent via TNT Courier and smaller items are sent via Royal Mail 2nd Class Post.

Items over £50 are sent with Royal Mail 1st Class track able service which is emailed to the customer on the day of dispatch.
For full delivery details please see our Delivery Page

International Delivery

Hargroves Cycles delivery all across Europe. Goods are shipped from the UK and are subject to import duties where applicable

For further delivery, pricing and restriction information please view our International Shipping Page

Returns Information

We will happily exchange or refund any item purchased at Hargroves Cycles within 365 days, except gift vouchers and personalized products, except where faulty.

Returned goods must be unused and supplied with their original packaging, unless faulty.

For full details on our Returns procedure please visit out Returns Section.

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After a brief but promising cycling career, Maurizio created his eponymous brand in 1974 and a series of firsts would follow: the first Lycra shorts used in racing and sold to the public, the first colored shorts, the first sublimation printed jerseys, the first synthetic winter clothing, the first use of windproof membranes, the first hydrophilic fabric treatments, the first anatomic seatpad, the lightest jersey ever produced, and the most aerodynamic jersey ever produced. Maurizio’s vision was to be at the forefront of technology, performance and design. Maurizio Castelli died in 1995 while cycling up the Cipressa climb, the next-to-last hill in the Milano-San Remo course.

Today, Castelli is dedicated to continuing Maurizio’s dream: to create the most innovative clothing for the cyclist seeking maximum performance.