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  • Rapha Flyweight Cap
  • Rapha Flyweight Cap Back
  • Rapha Flyweight Cap Back
  • Rapha Flyweight Cap Side
  • Rapha Flyweight Cap Back
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RaphaFlyweight Cap

Temporarily Out Of Stock

Item # RFA004H

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

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Light as a feather.

Designed to be as lightweight and breathable as possible, the Rapha Flyweight Cap is the go-to choice of cyclists pushing through the hot, sticky conditions of summertime. Ultra-lightweight polyester fabric wicks moisture off your head where it can readily evaporate, providing a subsequent cooling effect, even if you're wearing a helmet over this cycling cap. Laser-cut ventilation holes channel cooling air across your head, preventing overheating issues when temperatures approach triple-digit readings.
  • Ultra-lightweight cycling cap for sweltering heat
  • Lightweight polyester wicks moisture for a cool, dry feel
  • Laser-cut ventilation holes channel cooling air inside
  • Anti-odor tape around inner rim for lasting freshness
  • Rapha's signature stripe for a stand-out aesthetic
  • Elasticized rear provides a secure fit and feel
Tech SpecsSize
Tech Specs
Recommended Use
commuting, road cycling


Head Circumference



22 - 24in

(56 - 60cm)



How to Measure:
Measure the circumference of your head above the eyebrows and the tops of your ears.

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Rapha's Best Summer Lid

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I have two of Rapha's Flyweight hats for a reason. I wear them on every ride in the hot, humid weather of Florida's Gulf Coast, and they have to be washed and air-dried after each ride. Fortunately, the cap is very well made as numerous runs through the washing machine have not caused any damage whatsoever. This hat fits nicely under the helmet as the fabric is very thin and highly breathable, and it is quite fashionable off the bike as well. As another reviewer alluded to, somehow it is able to absorb and dissipate an amazingly amount of sweat that would otherwise make it's way onto your glasses and into your eyes. The brim of the cap does a good job of keeping the morning and evening sun at bay, but does not block your vision while in the drops. Kudos to Rapha for making what may be the best summer lid ever made!

Great cap

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size

Just wore this today for the first time on a hot, muggy day. I normally sweat a LOT in those conditions, and regularly have sweat stinging my eyes. Not one drop today. I'll be picking up another one or two!