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!
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.
As a somewhat older rider with less natural padding on the top than many, I always use a skullcap for comfort, sun protection, and to reduce the sweat pouring into my eyes. This skullcap has perfect coverage for me, and even on the hottest days it does a great job of reducing the amount of sweat pouring down from on high.
I use them every ride starting when temps hit 50 degrees, I live in Wisconsin and early season rides start out in the 30's, keeps my hair from ripping out, comfortable one size fits all, no sweat running into my sunglasses, protects bald spot on my head from direct sun. The only thing I don't like is I don't have a couple more of them.
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.
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.
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.
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
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).
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.
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.