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The GT is a do-it-all jacket: keeps the elements out and body warmth in through a GORE-TEX shell and Thermagraph® Active lining system.
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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.
Model is Height: 6' 1" (186cm), Chest: 38" (97cm) in a size Large
Style: M5WN159
ALL OUTLET ITEMS ARE FINAL SALE. NO RETURNS OR EXCHANGES.
Free shipping on orders over $125 (US Only).
For eligible items, returns for a refund are accepted within 30 days from the shipment date.
We are committed to a continuous journey of improvement and positive contribution to the world we live and play in, and using our business as a force for good. B Corp Certification designates that we’ve met B Corp community standards of performance, accountability, and transparency on factors from employee benefits and environmental management to supply chain practices and input materials.
Learn more about out sustainability efforts HERE
GORE-TEX guarantees you will stay dry and warm in any condition, for the life of your garment.
Body-mapped graphene lining that conducts and evenly distributes heat, keeping you warmer for longer in cold conditions while also enhancing breathability and cooling in warm weather.
A zippered pocket providing security and quick access to your resort pass with a versatile clip.
Strategically-placed panels of merino-blend fabric line the collar for added warmth and comfort during full-zip conditions.
Fold it, Roll it, Link it—the Hoodlink™ System transforms your snow jacket into small size, making it easier to pack and carry.
An innovative, scratch free pocket with a dual entry to securely hold a spare goggles lens plus other accessories or gear.
The Glove Link™ Inner Thumb Grip creates a glove-to-jacket connection to help you lock in, and keep snow out.
Dial in your fit and make adjustments on the fly with ultra-secure, adjustable wrist cuffs.
Tap on the icons to learn more about specific technology featured within this product.
The GORE-TEX membrane is created as a series of pores. Each pore is 20,000 times smaller than a water drop, yet large enough for vapor to pass through. This creates the ultimate membrane for keeping the inside of your garment dry while still allowing moisture and perspiration to pass through, effectively regulating your body temperature while keeping you comfortable inside your jacket or pants. GORE-TEX guarantees you will stay dry and warm in any condition, for the life of your garment. All GORE-TEX fabrics are bluesign® approved, meeting the highest environmental standards.
Developed around your body in motion, our exclusive Thermagraph® technology places separate zones of insulation and breathability strategically throughout your jacket or pants. These zones work together to create an ultra-lightweight, warm, and highly breathable lining that increases versatility of your jacket and pants. Insulation zones are placed where your body needs warmth the most - your vital organs, spine, knees, and seat are surrounded by breathable, moisture wicking mesh to allow for the utmost moisture evaporation and body temperature regulation.
The seams where pieces of fabric are brought together are the most likely spot for moisture to intrude into a garment. The seam taping process prevents this by making the seams as waterproof as their surrounding fabric. Seams in 686 garments can be fully taped throughout the garment or taped only at critical areas to further ensure quality workmanship and guarantee waterproofing.
This creates a packable system to keep gear in order when not in use. It’s simple: the jacket is folded, rolled, and then the hood bungy tightens around the bundle to keep it that way. This creates organization and increases room in your pack. At the end of the day, you have a bonus roll to be used as a cushion, padding, or pillow.
C0 PFAS Free DWR (Durable Water Repellency) coating is the outermost finish applied to exclusive 686 fabrics increasing their contact angle and thus repelling water while maintaining high breathability. DWR also helps repel stains and oils that can damage your garment's surface.