Size: XS
Color: Light Black

The Castelli Fly Vest boasts all the features that have made Castelli's cycling tops popular, along with exceptional warmth and weatherproofing for its genre that's out of all proportion to its light weight.

That's because, while the sides and back are made from stretchy, jersey-weight fabric, the front features Castelli FLY Fabric Technologies (FFT). This means that, just where the elements are most likely to hit you as you ride, you will benefit from the protection of three carefully thought-out layers.

First, there's an inner of windproof yet breathable Gore-Tex InfiniumTM Windstopper®, then a layer of warmth is added by super light CLIMA SL. Finally, a FLY SL shell sheds water and deflects wind. The latter two layers, additionally, are made from 100% recycled materials, making this vest as eco-friendly as it is efficient.

To aid temperature regulation, this vest features a low/no cut collar, which acts to prevent wind from entering at the neck, without offering so much coverage that it might cause you to overheat.

It's also practical, featuring as it does some of the essential elements that make Castelli's cycling layers so good. There's ample pocket space, including a zippered valuables compartment, reflectivity and anchorage at the waist, and a top-and-bottom opening zip to aid ventilation.


Key Features
  • An incredibly light vest offering protection from the elements
  • Cut with a low/no collar for improved temperature regulation
  • With stretchy, jersey-weight back and sides to ensure a good fit and cut down on weight
  • 3-layer Castelli FLY Fabric Technologies (FFT) at the front only
  • Features windproof, breathable Gore-Tex InfiniumTM Windstopper® inner
  • CLIMA SL insulation mid layer is 100% recycled post-consumer and adds warmth
  • With FLY SL shell, also 100% recycled, for water shedding and wind protection
  • Top and bottom opening YKK® Vislon® zipper
  • With 3 good sized back pockets, zippered valuables pocket
  • Elastic and silicone waist grips
  • Reflectivity at the hem
  • For a temperature range of 10-18°C
  • Weighs 99g (M)


Size Guide

XS 88 76 90 91
S 92 80 94 82
M 94 84 98 82
L 100 88 102 84
XL 105 93 107 85
2XL 110 98 112 86
3XL 115 104 116 87


XS 34.6 29.9 35.4 35.8
S 36.2 31.5 37 32.3
M 37 33.1 38.6 32.3
L 39.4 34.6 40.2 33.1
XL 41.3 36.6 42.1 33.5
2XL 43.3 38.6 44.1 33.9
3XL 45.3 40.9 45.7 34.3


Men's and unisex Castelli sizing is based on your physical measurements and the garment's intended use. Race items are designed to use fabric stretch to achieve a very snug fit; as such physical garment sizes vary within the range. Please don't compare sizing with other manufactures. The sizes shown above are for the maximum size, so someone with a 99cm chest would be a size L. If you have a 101cm chest then you're an XL.

Size: XS
Color: Light Black

Product information