The North Face Ascent Beanie:
Vented helmets are great for summer outdoor adventures, but once the cool drizzle sets in, it's tough to find something that both insulates and fits beneath your climbing and cycling helmets. Enter The North Face Ascent Beanie. This abrasion-resistant and highly lightweight cap features a light, stretchy layer of Polartec® Power Stretch® so it fits close without feeling too tight against your ears or forehead. It also folds down and compresses easily so you can stick it in a pouch or back jersey pocket once the sun starts to warm you up.