PEARL iZUMi  AmFIB Lite Skull Cap

I was wearing micro fleece beanie under my helmet on a cold ride when a friend recommended I get a thermo cycling cap. I ordered this and the one with a brim to try. Both were thin, light, and well-constructed with high quality materials. This one fit my head and covered my ears a bit better, so I kept this one and wore it on a windy night in the 30s to look at Christmas lights. My head remained relatively comfortable while the rest of me froze, so it did its job. The one thing I don’t like is that it makes my medium-sized head look like a tiny bean, so it’s not a cap I’d wear without a helmet.

It's very "wearable" (thin/comfortable) under a bike helmet but provided ample protection against the colder temps on a ride last week.

I've had and loved this hat for years. A couple of weeks ago my wife borrowed it and immediately informed me that she wanted one of her own. Easiest present I ever got her!!

This is a beautiful addition to any biker's repertoire. It is warm for the chill, and it is excellent for any weather with its moisture-wicking properties. I use this Pearl iZUMi Skull Cap during the Fall/Spring, Winter, and Summer months. The wicking of moisture acts as a fantastic cooling device during the summer and is also an excellent way to keep heat in during the colder parts of the year. One could say this Skull Cap maintains homeostasis.

I am a new E-Bike commuter in Boston and I thought this to keep me warm on my 20min commutes. I have an average/small head and it fits fine. It is extremely thin and lightweight. There is no insulation on the ears so not super warm but keeps the sting of the wind off. I’m hoping to try the heavier weight cap they have for actual winter. But this seems like it will work well for the transitional seasons.

PZ iZUMi AmFIB Lite Skull Cap is as noted in description. Cap is very light wt and compact, well made, very elastic for accommodating various head sizes, nice warmth for head without over heating and the ear flaps are minimized but right size for covering ears. I give the product a 92% rating all around except for value for money which I would give a 70% rating. I'd recommend this product.

I bought this hat for cold weather because that’s what it’s supposed to be designed for. I wasn’t impressed with its heat retaining abilities. Its ear flaps were not long enough to protect and the rest of the product doesn’t get the job done for riding in truly cold weather (below 40F). It should be fine for cool weather as it is currently produced.

Helmet liners of any sort are tricky. This cap is well made, and although I believe I have the right size, it still bunches and causes some helmet pressure points. It’s warm, so not suitable for warm weather. Ear flaps not necessary for me — interfere with noiseless functioning of Air Pods thru friction. Overall, however, very well made item.

I love this cap. It’s thin which makes my helmet feel right, not bulky at all. Very breathable material that kept my head at the right temperature. Best thing for me was the ear covers because feeling the cold air on my ears made my ride very uncomfortable. I have worn it between 30-45F and feel I can go another 10 degrees lower.