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Castelli Alpha Ros Jacket

RRP £280.00 £168.00 (Save 40%)

OE discount does not apply to this product.

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Could this be the ultimate winter training jacket? Probably.

Castelli have pulled all the stops out with the Alpha Ros jacket. Using Gore-Tex WindStopper fabric is a good start. Not only does it keep the cold air out, it breathes extremely well and, importantly, the membrane itself is waterproof. Typically, WindStopper garments don't get sealed seams, but Castelli have thrown the rule book out the window and taped selected seams around the shoulders and high stress areas which make the Alpha Ros practically waterproof, and by practically, we mean you'd need to be out in heavy rain for several hours to experience any wetness creeping through.

So, it keeps the wind and rain out. What really separates the Alpha from other jackets is the overall construction. The outer WindStopper layer is fixed to an inner insulating layer which allows better airflow, breathability and ventilation. Further more, using WindStopper instead of a typical waterproof hardshell fabric means the Alpha Ros is soft-to-touch, doesn't crinkle, and even stretches so you can be comfortable on the bike. 

Raw edge cuffs and waist sit flush with your gloves and tights for no gaps and minimal bulk. Waterproof zippers again keep the rain out while 3 handy rear pockets carry all your essentials. 

The bottom line is that the Alpha works in cold weather and wet weather. When choosing a jacket for winter, you no longer need one warm and one waterproof. The Alpha Ros does it all in one, and does it extremely well. If you plan on riding in all weathers this winter, and you want maximum utility and comfort on the bike, you need the Alpha Ros.


Product code: APJVT3AL0129 | Colour: Black

Proper Winter Riding Jacket

  • 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
  • Ideal Temperature Range: -5°-10°C / 23°-50°F
  • Weight:515g

Delivery and collection options

Delivery Option Available for this product Price Info

Home Delivery
FREE FREE Standard delivery within 10-20 working days on orders £100 or over.

Store Collection
£1.00 Click & collect Within 10-20 working days.

DPD Local Collect
- Not currently available

We offer a wide range of delivery types

Size guide

MEN (Unisex)      
GLOVES - Circumference      
SOCKS - Euro Shoe Size      
Men's Shoe Size36-3940-4344-47   
Women's Shoe Size35-3839-41    
SHOE COVERS - Euro Shoe Size      
SHOE COVERSDiluvio, Belgian Bootie     

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