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SmartWool PhD HyFi Training Beanie


This product is no longer available, but don't go just yet.


  • 3-panel crown construction provides a close, comfortable fit; contoured shape covers your ears for added warmth on cold, windy days
  • SmartWool PhD® HyFi Training beanie has reflectivity on the front and back to increase your visibility at night


View all SmartWool Men's Warm Hats

REI membership


Best Use Snowsports
Hat style Winter hat
Fabric 45% nylon/39% merino wool/16% elastane
Lining fabric None
Visor No
Earflaps Yes
Gender Unisex

The REI Difference

100% satisfaction guaranteed

We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

Gear & advice you can trust

At REI, we live and breathe the outdoors, and we're passionate about sharing our expertise with people of all skill levels. Whether you're new to the outdoors or a seasoned explorer, we'll take the time to understand your needs and help you find the right gear for you.

10% annual member refund

Anyone can shop at REI, but for a one-time $20 fee you can become an REI member and enjoy a lifetime of benefits. These include an annual member refund, typically 10% back on eligible purchases.*




*10% is typical but not guaranteed. Your refund is based on eligible purchases, which exclude REI gift cards, services, fees, REI Adventures trips,, and discounted items. Learn more