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Description

Castelli Fly Jack-Sey in Light BlackOn days when the weather is not cold enough for a jacket, but is too cool or changeable to make a jersey with warmers and a vest practical, you need the Fly Jack Sey. It offers weather protection and a touch of warmth but won't make you overheat. The Fly Jack Sey is so called because it makes use of the brand's latest innovation, Castelli FLY Fabric Technologies (FFT). This is a three layer material with a windproof yet breathable Gore Tex Infinium

reversable design

and validated at the highest level

It features a Premium A1 Aluminum frame making its singletrack debut

8mm handlebars

Z-switch system: easy change from presta to schrader or dunlop via a simple switch

allows for smooth reliable performance

water resistant Gore-tex Infinium windstopper 205 fabric at the front is exclusive to CastelliLight

flaring up to 120 lumens under braking or entering brighter environments

cardio and strength training device-free

Colour Touchscreen with GUI

Quick-release handlebar mount

3 digit combination lock with number reset function