Gear Review: Mammoth Full Zip Hoodie by IBEX
The Ibex Mammoth Full-Zip Hoodie is a heavyweight merino fleece designed for deep winter warmth. With premium wool, a full-zip design, and a cozy hood, it’s perfect for mountain adventures and fireside downtime. Durable, breathable, and built to last season after season.
When it comes to wool layers built for cold weather, Ibex always seems to get it right. The Mammoth Full-Zip Hoodie is their heavyweight merino fleece designed for deep winter warmth, mountain adventures, and cozy downtime by the fire.
With a durable construction, functional features, and the natural performance of merino wool, this piece quickly stands out as one of Ibex’s best cold-weather offerings.
Standout Features
- Heavyweight Merino Fleece (385gsm): Built with thick, insulating wool fleece that traps heat even in frigid alpine temps.
- Full-Zip Design: Easy layering and ventilation with a smooth, two-way zipper.
- Adjustable Hood: Provides excellent coverage and warmth, designed to fit comfortably over a hat or beanie.
- Durable Construction: Reinforced seams and Ibex’s premium wool blend mean this hoodie is made to last season after season.
- Moisture & Odor Resistant: Like all merino, the Mammoth regulates body temperature, wicks sweat, and resists odors naturally.
Pros and Cons
| Pros | Cons |
|---|---|
| Incredibly warm and cozy, ideal for winter use | High price point |
| Premium merino fleece offers temperature regulation and odor resistance | |
| Two-way zipper for ventilation and comfort | |
| Durable build, made to last years of wear | |
| Hood adds extra protection against wind and cold |
Trail Tested
The Mammoth Full-Zip Hoodie isn’t just just a cozy cabin-core layer; it’s a serious layer for the outdoors. During long winter hikes and mountain trips, it works beautifully as an outer layer in dry cold or as an insulating midlayer under a shell when the weather turns.
The dense merino fleece blocks wind surprisingly well while still breathing better than a synthetic puffy. At camp, it feels like wearing a wool blanket, making it one of those layers you don’t want to take off.
Packing It Out
If you’re looking for a heavyweight wool hoodie that thrives in true winter conditions, the Ibex Mammoth Full-Zip Hoodie is a top contender.
It’s built for adventurers who demand natural performance, long-lasting durability, and exceptional warmth. While it’s not an ultralight piece, it fills the role of a trusted cold-weather companion you’ll reach for year after year.
Check out this wool hoodie, along with a few other great options in our 2025 wool hoodie guide!
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