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
Cousteau/Hyper Blue
Cousteau/Hyper Blue

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


  • Hood, shoulders and arms are made of 3-layer Dry.Q™ Elite waterproof, breathable fabric
  • Body, including underarms, is stretchy nylon/spandex soft-shell fabric
  • Helmet compatible hood with single-pull adjustment system
  • Cuff tabs and hem drawcords allow quick fit adjustments
  • Chest pockets on the Mountain Hardwear Mixaction are set high for easy access while wearing a harness
  • Interior zip pocket for keys, ID or other small items


View all Mountain Hardwear Men's Wind Shells

REI membership


Best Use Climbing
Fabric (Body) 90% Nylon/10% spandex/(panels) nylon
Hood Yes
Back Length Hip-length
Average Weight 1 lb. 1 oz.
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, REI Garage, and discounted items. Learn more