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Castelli Alpha Jacket

Castelli Alpha Jacket
Castelli Alpha Jacket
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About Castelli

Castelli Size Guide

Castelli Clothing Technology

Q & A


Key Features

Windstopper 150 Fabric Is Windproof And Water Resistant
Dual Layer Construction
Excellent Ventilation, Moisture Evaporation And Breathability
Stretch Fabrics With Advanced Patterning
Zippered Rear Pocket With Reflective Webbing
Front Zippered Key Pocket, 3 Large Open Rear Pockets
Weight: 381g (Large)
Temperature Range: 0-12c


Castelli have re-engineered the cycling jacket in the Alpha series and as a result they have created one of the best jackets currently on the market. The name Alpha denotes the first in a series of new products that Castelli are introducing that feature new techniques and fabrics so give you the ideal cool and cold weather jacket.

Castelli have focused on two perennial problems with cycling jackets and jerseys. Firstly ventilation. With Alpha, Castelli have detached the insulating layer from the windproof layer so that you can open the windproof layer to let air in to ventilate and help evaporate moisture. This is very effective at regulating temperature and comfort while helping keep you drier as you build up a sweat. The second area Castelli have focused on are the openings. At the waist a new fabric and construction allows the jersey to lay completely flat for a streamlined, aerodynamic fit. Dropping in to your riding position the fit follows your body position without binding or billowing. This same construction at the wrists ensures a perfect fit with your gloves.

The Alpha jacket comes packed with many great features including an asymmetric external YKK Vislon zipper, silicone text gripper at the waist to keep the jacket from riding up and back ventilation to give you a constant airflow. The jacket is finished with multiple pockets including a front zippered pocket, three rear pockets and zippered rear pocket with reflective webbing.

Note: Please click on the above tabs for size guide and technology guide.

Note: Castelli clothing is sized small, Tweeks Cycles recommend you select one size above normal for an athletic fit, or two sizes above if you prefer a more relaxed fit.

NB: Image for illustration purposes only

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