A cycling cap earns its keep at the bill. Pull it low and the brim seals along the top edge of your glasses, keeping cold air off your eyes and rain off the lenses, which is the one thing a beanie cannot do for you. The Thermal Cycling Cap from Pearl Izumi builds a cold-weather version around that same curved, cycling-specific brim, then wraps it in insulating fabric and drops the side panels over your ears for the stretch of the season when a summer cap stops being enough.
The main body is 79% recycled polyester with 21% spandex, a thermal knit balanced for insulation and breathability rather than raw heat, so your head stays warm without going clammy under a helmet shell. The front panel switches to a 97% polyester, 3% spandex blend, giving the leading edge a denser face where wind and spray hit first. Fabric across the cap carries a UPF 50 rating, which counts for more than you would expect on bright winter mornings with the sun sitting low in front of you.
Fit is one size, with the spandex content stretching across head circumferences from 20.5" to 24.75". The profile stays flat enough to sit under a helmet without shoving the retention cradle out of position, and a port at the rear lets a ponytail pass through instead of bunching under the straps. BioViz reflective elements are worked into the cap and register at up to 100 meters, so the ride home after dark is covered too.... Read More
Care is straightforward: gentle cycle with a clear or free detergent, no softeners, no dryer sheets, then tumble dry low or hang dry. Scented additives coat technical knits and blunt the way they move moisture, which is the whole point of the fabric. The Thermal Cycling Cap also carries a published Pedal to Zero figure, offsetting the climate impact of the garment across 4mi / 6km of riding. If the rest of your cold-weather kit is sorted and your head is the piece still bothering you, this is the layer that closes that gap.
