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REI Co-op Rainier

The REI Co-op Rainier is an affordable option that offers strong performance and good features like pit zips and adjustable fitting, making it well-suited for day hikes and casual use.

Expert reviewed

Topic summary

The REI Co-op Rainier is an affordable option that offers strong performance and good features like pit zips and adjustable fitting, making it well-suited for day hikes and casual use.

Key takeaways

  • 2.5-layer waterproof-breathable nylon shell
  • Full-length pit zips for ventilation
  • Adjustable hood with brim
  • Adjustable hem and hook-and-loop cuffs
  • Two zippered hand pockets
  • Lightweight and packable design

Intended uses

  • Day hiking
  • Casual camping
  • Urban rain protection
  • Travel contingency
  • Backpacking

Verification notes

Evidence: expert reviewed. Last verified July 14, 2026.

REI Co-op

REI Co-op Rainier

Editorial take

The REI Co-op Rainier jacket has become a go-to for many looking for reliable weather protection without breaking the bank. It's built with a 2.5-layer construction, utilizing a nylon shell with a waterproof-breathable laminate and a dry-touch print on the interior. While REI doesn't specify the exact waterproof or breathability ratings, in our tests and field use, it’s proven itself capable of handling steady rain and wind during day hikes and general outdoor activities. The fabric feels reasonably robust for its weight, suggesting it can withstand regular use without immediate concerns about abrasion, though it won't stand up to serious bushwhacking like a heavier-duty 3-layer shell.

What truly sets the Rainier apart in its price category are the features typically found on more expensive jackets. Full-length pit zips are a huge win for managing heat and humidity, making this jacket far more versatile across varying temperatures and exertion levels than many competitors. The adjustable hood, hem, and cuffs allow for a customizable fit, effectively sealing out drafts and precipitation. These details elevate the Rainier from a basic rain shell to a piece of gear that offers genuine comfort and adaptability in changing conditions, especially when you're moving and generating heat.

This jacket hits a sweet spot for casual hikers, campers, and anyone needing a reliable, lightweight rain jacket for everyday use or less demanding outdoor pursuits. It's not designed to be a technical mountaineering shell, nor does it offer the hyper-breathability of high-end active waterproofs. Instead, it delivers solid performance, good features, and decent packability at an accessible price. For those needing a dependable backup in their pack for variable weather, or a primary shell for local trails, the Rainier is a smart, practical choice that punches above its weight.

Best for

  • Day hiking
  • Casual camping
  • Urban rain protection
  • Travel contingency
  • Backpacking

Not ideal for

  • Breathability is adequate, not exceptional for high exertion
  • 2.5-layer construction isn't as durable as 3-layer shells
  • Fabric can feel a bit stiff compared to premium options
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Verified specifications

Country of manufacture
🇺🇸 United States
Key features
  • 2.5-layer waterproof-breathable nylon shell
  • Full-length pit zips for ventilation
  • Adjustable hood with brim
  • Adjustable hem and hook-and-loop cuffs
  • Two zippered hand pockets
  • Lightweight and packable design

Warranty and repair information: contact REI Co-op directly for the most current terms. REI Co-op support

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