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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.Dominate the elements.
The only jacket that the Mammoth Unbound Park Staff trusts for over 200+ days on snow, the GT Jacket’s durability has been upgraded with our exclusive Thermagraph Active lining system to keep you going stronger and longer in any elements. A team favorite, the GT’s durable GORE-TEX shell keeps the elements out while the Thermagraph Active lining aids in heat and moisture management as your body heat changes throughout the day.
Features +
2-Layer bluesign Approved 100% Recycled Nylon with PFAS Free DWR coating.
Body-mapped lining system featuring graphene fleece for heat and moisture management.
Underarm ventilation for temperature regulation during activity.
Inner collar and mouth flap for natural warmth and moisture-wicking.
Jacket folds, rolls, and hood bungy tightens around bundle for easy packing.
Ample storage including phone heater pocket, goggle pocket, and pass pocket with key clip.
Technical Specs +
Fabric: 2-Layer bluesign Approved GORE-TEX 100% Recycled Nylon Fabric + PFAS Free DWR
Lining: Thermagraph Active Body-Mapped Lining System Featuring Graphene Fleece
Seams: Fully Taped GORE-TEX Seams
Ventilation: Air-Flo Underarm Vents
Powder Skirt: Attached Adjustable Powder Skirt with Lycra Stretch Panel
Hood: Adjustable Hinged Helmet Compatible Hood
Collar: Merino Wool Blend Inner Collar & Mouth Flap
Cuffs: Inner Lycra Wrist Gaiters, Adjustable Cuffs
Zippers: Waterproof Center Front and Chest Pocket Zippers
Pockets: 6-Pocket Design (2 Internal, 4 External) – Phone Heater Pocket, Zippered Pass Pocket w/ Key Clip, Chest Zippered Pocket, Front Hand Pockets, Internal Goggle + Goggle Lens + Stash Pocket, Internal Lip Balm Pocket, Chest Pocket Inner Key Clip
Additional Features: Pant Jacket Connect System, Graphene Grid Fleece Thermagraph Panel, Adjustable Bottom Hem Cinch, Hood Link System, Glove Link Inner Thumb Grip, Tangle Free Headphone Loops
Sizing +
| SIZE | NECK (inches) | CHEST (inches) | LOW WAIST (inches) | ARM LENGTH (inches) |
|---|---|---|---|---|
| S | 15-15.5 | 36-38 | 30-32 | 35-36 |
| M | 15.5-16 | 39-41 | 32-34 | 36-37 |
| L | 16-16.5 | 42-44 | 34-36 | 37-38 |
| XL | 17-17.5 | 45-48 | 36-38 | 38-39 |
| XXL | 17-18 | 49-52 | 38-40 | 39-41 |
