New Colors Added
A 3-layer hardshell for year-round adventurers with an eye for sustainability. Featuring a PFC-free GORE-TEX ePE membrane, this jacket offers a reduced ecological footprint and uncompromised performance. Not only durable and water-repellent, it’s also breathable, lightweight and highly compressible....
  • 6 out of 6
    6/6
    Trekking
  • 6 out of 6
    6/6
    Mountaineering
  • 5 out of 6
    5/6
    Hiking
  • 4 out of 6
    4/6
    Climbing
  • 3-layer GORE-TEX fabric with PFC-free ePE membrane
  • Face fabric and backing made from 100% recycled polyester 
  • Solution dyed backer for more sustainable production through significantly reduced water consumption
  • Stormproof, vertically and horizontally adjustable helmet-compatible hood with reinforced shield for an optimum field of vision at all times and easy operation when wearing gloves
  • Water resistant Aquaguard 2-way front zipper
  • Underarm ventilation with water-resistant 2-way zipper
  • MAMMUT High Reach Technology™ for unrestricted freedom of movement when climbing
  • 2 climbing harness-compatible front pockets with waterproof zippers
  • Zippered inner pocket
  • Pre-shaped sleeves with hook and loop fastener
  • Hem width can be adjusted with drawstring
    • Mountaineering, Hiking, Ski Touring
    • 1010-30161
    • CutRegular Fit
    • Water column28000 mm
    • Denier (main material)75Dx75D
    • BreathabilityRET<13 m² Pa/W
    • Weight444 g

  • Main Material - Backing100% Polyester
  • Lining100% Polyester
  • Main material100% Polyester
  • MembraneBased on polyethylene

  • Do not use chlorine-based bleach

    Do not use chlorine-based bleach

  • Do not dry clean or use solvents to remove stains

    Do not dry clean or use solvents to remove stains

  • Max. ironing temperature (110° C) Take care when steam ironing

    Max. ironing temperature (110° C) Take care when steam ironing

  • Minimize spinning

  • Tumble dry gentle

    Tumble dry gentle

  • Machine wash on wool/delicates cycle (max. 30° C)

    Machine wash on wool/delicates cycle (max. 30° C)

GORE-TEX ePE membrane

Water-resistant Mammut Gore-Tex fabric with water droplets on a blue surface, displayed against a black background.

High-performing and durable, the GORE‑TEX ePE membrane is the next generation in GORE-TEX technology with a lower carbon footprint. PFAS-free and with a 100% recycled backer and face-fabric, this resourceful hardshell has also been rigorously tested to ensure a long product life.

Features

  • Performance-driven

    Crafted with a helmet-suitable hood, underarm ventilation zips, and harness-compatible pockets.

    Person unzipping the side vent of a black Mammut mountaineering jacket, showcasing the breathable lining inside.
  • Mountaineering cut

    Thoughtfully engineered thanks to a streamlined alpine fit with MAMMUT® High Reach Technology™.

    Person showcasing the interior zippered pocket of a grey Mammut jacket they are wearing.
  • Optimal design

    Designed with the perfect balance of weight, breathability, and durability for freedom of movement.

    feature image 03

Designed for

    Designed for

  • A person in a Mammut waterproof jacket with a hood is outside on a rainy day, showcasing water droplets on the high-quality fabric.
  • Three hikers in black Mammut outdoor gear trekking up a grassy hill with stunning snow-capped mountains in the background.
  • Person in a black and beige Mammut jacket smiles while leaning on a rock with water splashing in a natural outdoor setting.
  • Two adventurous individuals in Mammut outdoor jackets smiling and running beneath a light sky background.
  • A person in a black Mammut waterproof jacket with a hood, covered in droplets of water, stands facing away from the camera amidst a foggy mountain landscape.

"The Crater IV is our most versatile GORE-TEX hardshell for mountain activities. Whether it's day hikes, multi-day trekking, or mountaineering in harsher terrain, the Crater IV perfectly balances a breathable lightweight construction alongside durable weather protection.

With the introduction of the new ePE membrane technology by GORE-TEX, we were also able to make an important step towards a more responsible future, by eliminating PFCs and ultimately reducing the overall carbon footprint of the material."

Product Manager, Stefanie Gubalke

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