FREDD MARSHALL Gamma-Shell AR Men's Technical Hardshell Jacket — Mountain, Hardshell
Charcoal / S
Sale price
$149.99 USD
Regular price
$199.99 USD
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FREDD MARSHALL Gamma-Shell AR Men's Technical Hardshell Jacket — Mountain, Hardshell
Sale price
$149.99 USD
Regular price
$199.99 USD
The Gamma-Shell AR is a 3-layer waterproof/windproof hardshell built for serious mountain weather. A durable laminate, fully taped seams, and a helmet-compatible storm hood keep wind and rain out, while a membrane manages moisture vapor during high-output climbs. It is the protective outer layer for alpine objectives and exposed terrain.
Specifications
| Category | Waterproof hardshell jacket |
| Fabric | 3-layer waterproof/breathable laminate |
| Weight class | Technical mountain shell |
| Waterproofing & DWR | Fully taped seams, DWR-treated face fabric |
| Breathability | Membrane-based moisture vapor transmission |
| Hood | Adjustable, helmet-compatible storm hood |
| Pockets | Zip hand and chest pockets |
| Fit | Regular, articulated for movement |
| Recommended temp range | Cool, wet, windy conditions (approx. 20–55°F / -7–13°C) |
| Intended use | Mountaineering, alpine hiking, wet-weather travel |
| Care | Machine wash cold, tumble dry low to reactivate DWR, no fabric softener |
| Sizes | S–XXL |
Construction & Features
- 3-layer laminate construction for durable waterproof/breathable protection
- Fully taped seams and weather-sealed zippers keep water out
- Adjustable, helmet-compatible storm hood for full-coverage protection
- Articulated patterning through the shoulders and arms for unrestricted reach
- Adjustable hem and cuffs to seal out wind-driven rain
- Zip pockets positioned to remain accessible under a pack hipbelt
Intended Activities
Mountaineering — Weatherproof outer layer for high-altitude objectives.
Alpine hiking — Reliable protection when ridgeline weather turns fast.
Wet-weather travel — Durable shell for unpredictable forecasts.
Layering system — Outer shell over insulation in cold, stormy conditions.
Fit & Sizing
Cut to a regular fit with articulated patterning, leaving room to layer insulation underneath. If you plan to wear a thick fleece or mid-layer beneath the shell, consider sizing up. Available S through XXL. Refer to the product image gallery for the size guide.
Frequently Asked Questions
How waterproof is this hardshell?
A: It uses a 3-layer waterproof/breathable laminate with fully taped seams, built to keep you dry through sustained rain, sleet, and snow.
Is the hood helmet-compatible?
A: Yes. The storm hood is sized and adjustable to fit over a climbing or ski helmet and cinches down for bare-head use.
Can I layer insulation under it?
A: Yes. The regular fit leaves room for a fleece or light insulator. For a thick mid-layer, size up.
Is it breathable on the climb?
A: The membrane transmits moisture vapor to limit internal condensation during high-output effort. Open the front zip to dump heat on steep ascents.
How do I maintain the waterproofing?
A: Wash cold with a technical wash, avoid fabric softener, and tumble dry low to reactivate the DWR. Re-apply a spray-on DWR once water stops beading.