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The Newsletter.

Learn about product availability and see behind-the-scenes action, from cleaning raw sheep's wool to pressing pure copper rivets. This newsletter has it all!

– Michael, writer of the newsletter.

The Mammoth Woolen Jacket (V2)
The Mammoth Woolen Jacket (V2)
Man button up the Iron Snail Mammoth jacket.
The Mammoth Woolen Jacket (V2)
Man buttoning up the Iron Snail Mammoth jacket.
Snap action clip on the Iron Snail Mammoth jacket. Holding keys.
The Mammoth Woolen Jacket (V2)
Snap action lever, Iron Snail Mammoth jacket.
Man bending over wearing the Iron Snail Mammoth jacket.
Man modeling the Iron Snail Mammoth jacket.
The Mammoth Woolen Jacket (V2)
The Mammoth Woolen Jacket (V2)
The Mammoth Woolen Jacket (V2)
The Mammoth Woolen Jacket (V2)
The Mammoth Woolen Jacket (V2)
Fabric of The Iron Snail Mammoth jacket.

The Primordial Line

The Mammoth Woolen Jacket (V2)

Regular price $550.00

Size

THE MAMMOTH SIZE GUIDE

  • We recommend you grab your favorite fitting jacket and compare measurements to find your best fit.
  • Generally, we'd suggest you size up one if you already own other woolen jackets of a similar caliber.

Extra Small Small Medium Large Extra Large XXL
Body Length 27.5" 28" 28" 28.5" 29.5" 29.5"
Pit to Pit 21" 22" 22.5" 23.5" 25" 26"
Shoulder to Shoulder 17.5" 18" 18.5" 19" 20" 20.5"
Sleeve Length 24" 24.5" 25" 25.5" 26" 27"
Size guide
Color: Toasted Clove

How to Measure for a Mammoth

The Mammoth is coming back in stock soon! Sign up for the email list for the most up to date information.

Photographs are of the production sample, the pattern will match a bit better in production.

Everyone needs an heirloom woolen jacket. A jacket that can be proudly passed down through generations; a makeshift blanket, a cape, a cold weather companion. The goal of "The Mammoth" is simple; to be, and remain, unstoppable, to live up to its own name, to be the de facto best woolen jacket on the market. We hope The Mammoth can be yours. Let us introduce you two.

The Mammoth" at its thinnest point is 37-oz./LY of some of the finest wool available and, at it's thickest, a staggering 65-oz./LY. This jacket is so robustly built in fact, we debated on including a warning label with the care instructions.

V2 Updates:

  • Extended the interior back panel of wool all the way down to the bottom for even more warmth and protection.
  • Tightened the storm cuffs and switched them to Merino.
  • Increased our shoulder width by 1" (you can stick with your normal size, this was done for easier layering).
  • The cuffs are now buttoned to allow bulky mittens to be worn if needed.
  • Lil' patch update too.

Please, make sure to layer properly when venturing on daring excursions with "The Mammoth". It's beyond warm.

Specs at a Glance

- 28-oz./LY twill outer
- 9-oz./LY faille woven worsted wool lining
- Solid brass snap action clip
- Wind Wall Technology
- Medium weight storm cuffs
- Locking Collar
- Made in USA

The Tale of The Mammoth

The Tale of The Mammoth is the first part of "The Lore Series". "The Lore Series" covers the lore of The Iron Snail far before The Prologue and Chapter Series began. Tales of the mightiest creatures in all universes will reside here, a necessary backstory to understand all of the Snail's powers.

The purchase of a Mammoth will also include:

A booklet of the tale (with blank pages to be used as a notebook) and a Mammoth patch.

The Hoxie Woolen Outer

"The Mammoth" is crafted from double-layered (front pockets & Wind Wall) 28-oz./LY 2x2 twill melton wool woven exclusively for The Iron Snail. We've dubbed this mighty fabric, Hoxie Wool. The inaugural edition of "The Mammoth" features an oversized check pattern in a rich brown and soft charcoal, colors you'll be rather familiar with when walking around the New England wilderness (where the wool was spun into yarn and woven). 

This fantastically dense wool is designed to endure the harshest elements effortlessly while remaining breathable, fire-resistant, and anti-bacterial. Moreover, it provides insulation, even when wet.

The Perfectly Suited Lining

Touching your skin is a 9-oz./LY faille woven worsted wool fabric, often used in fine suiting (to prevent itchiness and further block the wind). We chose this lining specifically to keep 'The Mammoth' 100% wool. This is a feature you will rarely ever find on another jacket. 

What are the benefits? Well, by not working with other fibers, we can modify the traditional layout of a woolen jacket to keep it sleek, yet extra warm (more on that later), while also ensuring it can be comfortably worn with just a t-shirt. 

The wool fiber used in the lining is finer than the fiber used in Hoxie Wool. Besides being softer against the skin, finer wools allow more air to be trapped in the yarns. This means that the liner, kept safe by the Hoxie Woolen outer, outperforms your average wool in terms of warmth-to-weight ratio.

No kidding!

The Wind Wall

Ah, 'Wind Wall Technology', something we're quite proud of! As mentioned earlier, we've chosen to craft this jacket entirely from 100% wool, giving us the flexibility to rearrange the typical layout (layers) of a wool jacket. Let us elaborate. We've meticulously placed the jacket's lining between the main body fabric and an interior chest and back plate made of wool. We gushingly refer to this as 'Wind Wall Technology.' The outermost layer of wool shields against the elements, the lining further stops the wind, and the interior wool plates (crafted from the outer fabric) act as unencumbered insulation. You could think of 'Wind Wall Technology' as an additional woolen blanket inside your jacket. Imagine an internal cape coat with an extra layer of warmth in between.

The Mighty Storm Cuff

Hidden inside of the sleeves are storm cuffs. Knit specially for us in Massachusetts. The cuffs are a midweight 1x1 ribbed Merino from the legendary Shaniko Wool Company, the first U.S. Farm Group to supply certified wool under the Responsible Wool Standard (RWS). The cuffs grip your wrists and create a gentle seal around them. A.k.a. these cuffs are sewn in to prevent wind, rain, and snow from entering your sleeves. Nobody likes that.

The Handy Action Clip

North of the storm cuffs and tucked into the left pocket is an action clip—a brass clip that allows you to hang your gloves, mittens, whistles, keys, or whatever else you may have from your jacket while you focus on other matters (like fending off all the compliments on your jacket). On the top left corner of the clip is an extra drilled hole meant for a keyring, so you can add any accessory you wish.

We've included the action clip with exploration in mind, but we're eager to see what you decide to snap on. 

We're particularly fond of those tiny jean keychains that you can get from many Japanese denim manufacturers.

On a more serious note, a neon orange whistle will probably come in handy one day if you're an explorer.

The Locking collar

Even further north of your action clip is the collar. A collar, of course, is something to be expected on any jacket and may not seem special at first. 

However, upon further inspection, this one is. Built to either lay flat or be popped up to protect the wearer's neck from the elements, the collar comes with an extra corozo nut button sewn on in order to fasten it closed when in stormy weather. These same corozo nut buttons are sewn throughout the jacket, securing pockets and the main placket.

Toss on a hat of any sorts and along with the locked collar, you can walk around with a covered and warm face, even sans scarf. 

The Hardiest Nut

Vegetable ivory— that's what they call it these days. Some refer to them as tagua buttons, while others prefer the term corozo nut buttons. 

Tagua nuts have been carved into figurines, coins, buttons, etc., for the better part of forever. But what exactly is it? According to Wikipedia, 

"Vegetable ivory or tagua nut is a product made from the very hard white endosperm of the seeds of certain palm trees."

Simply put, corozo nut buttons are individually unique, incredibly hard, lightweight, sustainable, and biodegradable. It's no wonder they were some of the most popular buttons used worldwide in the 1930s. 

Here's a fun fact: a tagua palm can take 15 years to mature, but once it does, it can produce tagua nuts for up to 100 years.

Customer Reviews

Based on 40 reviews
98%
(39)
3%
(1)
0%
(0)
0%
(0)
0%
(0)
94.9
100.0
J
Jason G
Great jacket!

As soon as I saw a v2 Mammoth was being released, I knew I wanted it! It's such a beautiful, well-made jacket. I was a little nervous about the sizing, but all of specification / guidance on the site was great.

So far, it's lived up to every expectation. It fit perfectly and will break-in even more over time. Toasted clove is subtle, but looks amazing. I got the jacket towards the end of winter, so it didn't get much outdoor time, but it's plenty warm enough for a NY winter.

No regrets about this jacket or Iron Snail. They have excellent products and top notch customer service.

P
Prem
Long live the Woolly Mammoth, again

Thoughtfulness of design, quality of materials, fit. Absolutely an argument this is better than all its competition - looking at Filson, Weatherwool etc. This just has a more cohesive modern design and just does all the little things a bit better. This is the coat I stopped buying coats for.

E
Eduardo
Review from Spain

I can't really express how happy I am that I finally made this decision.

Until a few months back I wasn't convinced that wool could be so great. I was a bit dissapointed even, until I learned how to layer properly. The GREAT thing about The MAMMOTH is that you don't have to worry about that. You don't have to worry about layering, about wind, nor rain. If it's too cold you do you.

To give other people an idea, taxes and customs were 192€ and FedEx took care of everything.

J
John

Best jacket i own

H
Howard
The wooliest jacket

Lives up to the promises of warmness! If it helps people with sizing, for the V2 I bought a XS and my measurements are: 163 cm height and 54 cm chest. The jacket hits above mid thigh.

123

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