You are using a web browser we don't support. Please use the latest version of one of these browsers.

Mozilla Firefox

Google Chrome

Apple Safari

Microsoft IE

Back to top

REI Midweight Polartec Power Dry Half Zip Top - Men's

Puget Sound
Puget Sound

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


  • Polartec Power Dry utilizes 2 different yarns on either side of the fabric to enhance comfort: interior yarn wicks moisture, and exterior yarn dries quickly
  • Combination of the 2 yarns helps keep you dry during highly aerobic activities because it moves moisture away from skin faster than single-component fabrics such as cotton
  • Fabric offers UPF rating of 20 to protect against harmful UV light
  • Center front zipper allows ventilation control
  • Flatseam construction is soft and non-chafing next to skin, and raglan seams are designed to be comfortable when wearing pack straps on your shoulders
  • Underarm and side gussets promote freedom of motion and reduce chafing under a hipbelt
  • Longer length helps top stay tucked in, and smooth texture of outer surface helps it slide easily under extra layers
  • The men's REI Midweight Polartec Power Dry Half Zip top features a next-to-skin fit that hugs the body


View all REI Men's Long Underwear Tops

REI membership


Best Use Snowsports
Shirt style Zip-front
Fabric 87% Polartec Power Dry polyester/13% spandex
Sun-protective fabric Yes
Moisture wicking Yes
Quick drying Yes
Underwear weight Midweight
Sleeve Length Long sleeve
Gender Men's

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