Mountain Hardwear Men's Butter Beanie

Will buy more!
This is a great skull cap. I wear a hard hat all day and it fits perfectly under the hard hat as a base layer. Its very soft and comfortable. It's exactly what I have been looking for and planning to buy more to stock up.

Great liner
This beanie is comfortable, good fit, and warm, it is perfect as a helmet liner. Fits easily in your pocket for when need a little extra warmth. I liked it so much I'm buying another one!

Warm & Packable
Light beanie that you could almost forget you have. Packs into any pocket and thin enough to put underneath a helmet. Great color (espresso). Would not take it on a blustery day, but a cool dry night would be perfect!

great for training
The name fits. It's soft as butter. Surprisingly warm considering how thin the material is. Not windproof or insulated, but the perfect lid for aerobic exercise in cold weather. Fits perfectly under a helmet for comfortable biking in 30 - 40 degree weather.

Fits well under helmet, which is the only reason to buy it. Bought similar MH products, uniformly high quality. Only got 4 stars because, after all, it's just a helmet liner.