Description Don't be afraid to sweat.
The Summer Skullcap has you covered in blistering conditions thanks to a polyester and mesh construction which wicks moisture and promotes airflow beneath your helmet. A stretchy, trim-free headband keeps perspiration off your brow with a soft touch.
The Summer Skullcap is available in multiple colors.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Reviews Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Great light cap
4 of 4 customers found this review helpful.
My favorite band is Rush. One of their old songs I identify with more and more is I Think I'm Going Bald. If I don't ride with a cap, I get crazy vent tan lines or burns on my skull. This cap does the trick. It's light and comfortable and keeps the sweat out of my eyes. I've had one for a couple of years with no noticeable wear. Highly recommended
Reviewed 6/11/2019
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Upgrade from headband, keeps sweat off my eyes
by msknopf
Cycling Enthusiast
New York, NY
1 of 1 customers found this review helpful.
Looking for a product to upgrade from headband, which were not doing a good enough job absorbing and wicking sweat during summer rides. Tried a few summer weight skullcaps and found that the Castelli skullcap works the best. Does a great job absorbing and wicking sweat and keeping cool, no longer does sweat build up and run into my eyes as with a headband. Fits well under helmet, like that it covers my bald head from the sun. Tried Giro and PI skullcaps as well, liked Castelli the best.
Reviewed 10/25/2021
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Perfect warm to cool weather head cover
by Anonymous
Competitive Racer
Atlanta, GA
5 of 5 customers found this review helpful.
I wear this scullcap under my helmet. It is thin, it doesn't bulk up and make the helmet fit tight. Although it is designed for warm weather, I find it helps cut a bit of chill on cool days too. It does not go over the ears. For me, it's a good piece to wear from high 50's through low 70's. Since it does retain a small amount of heat, I tend not to wear the cap when it's really hot, although, it is a trade off from a sun burned scalp (as I'm bald).
Reviewed 6/26/2017
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Great skullcap
by Greg H
Cycling Enthusiast
Long Island, NY
Very comfortable. Wicks away moisture. I will definitely buy another.
Reviewed 8/19/2021
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Great skullcap
by nhmtnbkr
Cycling Enthusiast
Nashua, NH
1 of 1 customers found this review helpful.
Overall this is a great skullcap for wearing under a road helmet. It catches and wicks sweat very well, even on the hottest of days and long rides exceeding 50 miles. Experienced very little dripping even when sweating up a storm. Fit is excellent and stretches well to accommodate even my large noggin, and it doesn't create pressure points under a helmet, which is rare for most skullcaps. Pretty pricey even on sale for a skull cap IMO, regardless of how good this is.
Reviewed 7/6/2021
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Works well
by Bald roadie
new england
1 of 1 customers found this review helpful.
Keeps baldy from getting sunburnt thru helmet air holes without heating up on long rides. Not as good at keeping sweat out of eyes though.
Reviewed 6/19/2020
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Very well fit
by Joseph
sunny central florida
The skull cap I purchased was well worth the purchase - the cap makes my helmet fit snug and the helmet does not move around as well as providing the sun cover through the helmet holes. I really like the way the cap keeps the sweat from my head off my glasses.
Reviewed 6/19/2020
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Better seams and comfort
by PACB4
Cycling Enthusiast
Philadelphia, PA
Compared to another skull cap that leaves a lasting mark due to thicker seams, the Castelli fits tight and leaves no marks even on my big head.
Reviewed 8/5/2022
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Runs Small
by rickrides
Cycling Enthusiast
SF Bay Area
This cap is a little small so if you have a large head it might not be right for you.
Reviewed 7/29/2022
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Best hot weather skull cap of the many I've tried .
by Anonymous
Cycling Enthusiast
Michigan
Very light weight , wicks well . Doesn't interfere with helmet fit .
Reviewed 6/16/2022
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castelli qualtiy
by bikerdad
Cycling Enthusiast
Galesburg,IL
I do not like wearing anything under my helmet. I have lost most of my hair so I have no choice if I want to avoid the sun tan stripes. This skull cap is comfortable and it takes hours before I really feel it. Besides the castelli quality it fits the best of any skull cap I have purchased.
Reviewed 8/22/2021
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Disappointing Performance from a Great Brand
by Anonymous
Cycling Enthusiast
Chicago suburbs
2 of 2 customers found this review helpful.
I'm bald so always wear a head covering to prevent sunburn and for comfort. Headsweats skull caps have alway been great but I bought this on sale to try. I have been very disappointed as it's too tight (one size fits all), too small (doesn't cover enough of my head), and doesn't have a good surface for absorbing sweat on the forehead or keeping my helmet in place. I rarely use it.
Reviewed 8/19/2021
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Superior to other skull caps
by Anonymous
Cycling Enthusiast
Napa, CA
2 of 2 customers found this review helpful.
I have several skull caps from other companies and hate how when they get soaked I get sweat on my glasses. That is because they put a terry cloth patch on the forehead. The Castelli Skullcap is a sweat absorbing headband with an lightweight top. Sweat stayed away from my glasses and it was cool as temperatures reached low 80's. Good product.
Reviewed 6/28/2021
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New Favorite
by Anonymous
Cycling Enthusiast
Portland, OR
1 of 1 customers found this review helpful.
This skullcap is hands down my new favorite. I am bald, so the flat seams and terrific fit are a big deal. The skullcap is comfortable, thin (doesn't interfere with helmet fit), and wicks moisture more effectively than any other skullcap I've used - and I've used many.
Reviewed 6/10/2021
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Good lightweight cap for mild to hot weather
by GregS
Cycling Enthusiast
Portland, OR
1 of 1 customers found this review helpful.
Great cap to keep the sweat off the brow, and give an edge with a slight chill out.
Reviewed 9/21/2018
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Best Skullcap for the Summer
by davidshiloh4
Cycling Enthusiast
Denver, CO
4 of 4 customers found this review helpful.
I've tried many skullcaps to keep the sweat off my brow and so far this is the best one out there. It fits tight and keep the sweat from dripping on my face as I ride long miles in the sun all summer long.
Reviewed 6/29/2017
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Great sun protection!
by CaptJDMac
Cycling Enthusiast
Long Beach, Ca
Cap keeps the sun off my head, even under my helmet. Super light and unobtrusive, and it looks great when I wear it alone, without the helmet.
Reviewed 1/10/2022
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Does exactly what it's supposed to
Reviewed 1/15/2022
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Keeps the Head Cool, Shaded, and Bug Free
by Eric
Cycling Enthusiast
Seattle
Faithfully wear this little gem on all my summer rides. Keeps the head cool, good protection from sun beating through the helmet slips on my buzzed head, and also protected me from a few in-flight creatures that made it through my helmet vents. Great purchase!
Reviewed 9/8/2020
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I would buy another
by Anonymous
Chicago suburbs
Have had problems with other one-size fits most skullcaps being way too large for me but this fits in well under a Giro size small helmet. High quality construction. Breathes well in 90 degree heat. Washes well and does not stain.
Reviewed 9/10/2020
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