Whether it’s summer or winter, I’m a year-round advocate for merino wool, and this Giro "Merino Winter Cap," which I started using last year, is one of my highly recommended merino wool items (that’s a mouthful!).
Giro
MerinoWinterCap ¥3,670_
COLOR: Black, Charcoal, HeatherRed x Black
It feels great against the skin, is warm, and is an essential cycling cap with ear flaps for when the weather turns cold and you need to cover your ears.
Of course, it can be worn comfortably under a helmet without any fuss.
Furthermore, I’m very grateful that they offer two sizes: S/M (51-57cm) and L/XL (57-63cm).
This is a must-have item for winter rides under your helmet.
By all means, please give it a try!