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The Castelli Men's Prologo HD Sleeveless Jersey doesn't take kindly to being neglected. Its moisture-wicking, breathable, and quick-drying Stratus fabric with Prosecco treatment means that the Prologo was built for the road and for ensuring you stay comfortable while riding.

  • A back mesh insert helps regulate your core temperature so you stay cool on the uphill
  • A half-zip hidden zipper opens to dump excess heat and gives the Prolongo a super-clean look
  • Two back pockets and one zippered key pocket stash your essentials
  • One rear reflective tap helps motorists and others spot you in low-light conditions

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Here's what others have to say...

4 5

We all need a sleeveless jersey

Everyone needs a sleeveless jersey, for those incredibly hot days. It also helps even out the weird tan lines we all have. Ordered this one because I like castelli gear, and because frankly, most sleeveless jerseys look like crap, or techno-bopper-laser-triathlon-ish. Not me cup o' tea.

Feedback : Looks great, fits well and is super light. The shoulder opening could have been a little tighter, more tapered, but that's a very minor detail/preference. Fabric is very light and super breathable, and the white fabric on the top of the shoulders is a nice, cooling touch (ordered the black/white)

Fit : In line with typical Castelli sizing. I ordered XXL, have a 36" waist, 45" torso and measure about 6'2"