Verdict
Head-to-head · Best Rain Jackets

Black Diamond Highline Stretch Shell vs REI Co-op Rainier Rain Jacket

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Black Diamond Highline Stretch Shell comes out ahead by a clear margin (4.3 vs 3.8). Black Diamond Highline Stretch Shell is best for: Climbers who prioritize durable, flexible protection in cold conditions. Read the strengths below before deciding.

Black Diamond Highline Stretch Shell
Higher ratedRanked #3 in Best Rain Jackets
Black Diamond Highline Stretch Shell
2 sources$529as of Oct 10

The Black Diamond Highline Stretch Shell delivers impervious protection against heavy rain and wind through its 3-layer BD.dry construction and fully taped seams, as bettertrail found it performed flawlessly in torrential downpours. Its 40-denier face fabric offers above-average durability for a stretch shell, while the GTT Breathable Waterproof Protection permanently fuses the DWR finish to eliminate re-treatment needs, a benefit thegreatoutdoorsmag confirmed after months of exposure. However, the jacket is priced significantly higher than competitors and features an oversized, boxy fit that feels bulky and overkill for mild weather above the mid-60s Fahrenheit. It fits alpinists and climbers who prioritize durable, stretchy protection in cold conditions but should be avoided by hikers seeking a slimmer profile or those active in warmer temperatures.

Strengths
  • — 3-layer BD.dry construction provides impervious protection against heavy rain and wind, with fully taped seams ensuring no moisture penetration.
  • — GTT Breathable Waterproof Protection permanently fuses the DWR finish into the fabric fibers, eliminating the need for periodic re-treatment and maintaining long-lasting water repellency.
  • — Stretchy jersey-backed interior provides a soft, quiet feel against the skin and allows full range of motion without the crinkling sound of traditional hardshells.
Watch-outs
  • — Oversized, boxy fit and long hem can feel bulky and overkill for mild weather above the mid-60s Fahrenheit.
REI Co-op Rainier Rain Jacket
Ranked #7 in Best Rain Jackets
REI Co-op Rainier Rain Jacket
4 sources

Better Trail found that while the REI Co-op Rainier offers reliable protection against light rain and steady drizzle, its 2.5-layer construction wets out during heavy or sustained rainfall. The jacket suffers from limited breathability, causing clamminess against bare skin due to a plasticky interior coating that reviewers advise avoiding by wearing a base layer. SectionHiker praised the pit zips for mitigating heat buildup but noted the hood lacks precise shaping and can flap loudly in high winds without a tight fit. This budget-friendly shell is ideal for urban commutes or short hikes where weight savings are not critical, but it is unsuitable for intense aerobic output or extended exposure to wet conditions.

Strengths
  • — Includes pit zips to help vent heat during active use.
  • — Stuffs compactly into one of the zippered hand pockets for easy packing.
  • — Features an adjustable hood with side neck toggles and rear cinch.
Watch-outs
  • — The 2.5-layer interior coating feels plasticky and can become clammy against bare skin.
  • — Limited breathability makes it unsuitable for high-output activities in warm weather.
  • — Fabric tends to wet out during heavy or sustained rainfall rather than light drizzle.

How they stack up

Black Diamond Highline Stretch Shell

It provides a stretchy fit for climbing motion, unlike the stiff, crinkly construction of the Rab Downpour or the rigid feel of the Outdoor Research Foray 3L.

REI Co-op Rainier Rain Jacket

It includes pit zips for ventilation, unlike the Patagonia Boulder Fork, but suffers from limited breathability and a plasticky interior coating compared to the more premium materials in the Helly Hansen Verglas Infinity Shell Jacket 2.0.

Specs side-by-side

SpecBlack Diamond Highline Stretch ShellREI Co-op Rainier Rain Jacket
Material40D nylonRipstop nylon with non-PFC DWR
Weight12.7 oz (Men's M)11.3 oz (men's medium)
VentilationPit zips—
Fabric Layers3-layer2.5-layer HydroWall
HoodAdjustable, climbing-helmet-compatible—
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