JMT Ultralight Sweater

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Minimalist 2-3 season synthetic insulated jacket for light layering, with a short body and generous sleeve length.

At 7.4 ounces for a size medium the hooded JMT packs tremendous warmth and function in a small, all conditions package.

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$235.00

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Due to Apex supply issues the JMT is the only synthetic insulated product we can offer during the pandemic.

The JMT Sweater is our lightest insulated shell named after the classic John Muir Trail in the Sierra. 

Built with Climashield APEX, a lightweight yet remarkably efficient synthetic insulator, the JMT will retain some warmth when damp, and will dry and recover more quickly than down. 

Design

This is a simple jacket, lean on features, with the focus on as much warmth for the weight as possible. In its basic configuration the APEX insulation makes up over 55% of the total weight.

The JMT is available with a full separating front zipper or a half length pullover style zipper. 

We build it with or without an integrated hood. The hood option is fully insulated and offers complete coverage to above the chin - but it is not helmet compatible. For most users, only a very thin beanie will fit under this trim hood.

Key design points to take note of:

* The JMT with the full zipper is without any exterior pockets. 

* The hood casing have a fixed, pre-tensioned shockcord.

* The JMT does not have an elasticized waist cord.

* The sleeve ends are cut trim with no additional closure offered.

Synthetic Fill

APEX by Climashield, a superior continuous filament synthetic insulation, is the choice here.

We have 2 weights available. For summer season mountain use in the continental US (and the Alps) the 2.5 oz/yd level is appropriate. Shoulder season users can select the 3.6 Apex level for the torso.

The APEX specs:

2.5 oz/yd Climashield APEX - 85 g/m - light, compact, 2 season
3.6 oz/yd Climashield APEX  - 122 g/m - more weight/bulk, 3 season

Materials

The JMT can be configured with a 10d shell in a number of different colors. It's an ultralight fabric for folks who want the lightest, but realize that abrasion and tear resistance is minimal.

Sizing

The stock cut is aimed at providing a short jacket with a trim fit, best when used over only one or two lightweight thermal layers. Compared to the PCT line of APEX hoodies, the JMT Sweater is a size smaller in the torso while the sleeves are the same

The chart and configuration menu below outlines the many options for sizing the JMT Sweater. Tall people may wish to go up in zipper and back length. Likewise, folks with long arms will know when to add to the sleeves. 

Grade 
09/22/2017

unboxing

The jacket arrived today.

First impressions are: WOW!

It fits me perfectly. I'm pleased I went for the longer back length and longer sleeves.

The material feels great and the jacket feels warm.

The #5 two way zip is superb - I've never been a fan of lightweight zips. The extra weight for it is so minimal.

The total weight is amazing - 239 grms!

Many thanks for such a superb piece of gear!

Best wishes,

G in the UK

  • 1 out of 1 people found this review useful.
Grade 
09/22/2017

JMT

I am very impressed with the JMT jacket I must say.
no frills, all function, truly UL.
thanx

  • 1 out of 1 people found this review useful.

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JMT Ultralight Sweater

JMT Ultralight Sweater

Minimalist 2-3 season synthetic insulated jacket for light layering, with a short body and generous sleeve length.

At 7.4 ounces for a size medium the hooded JMT packs tremendous warmth and function in a small, all conditions package.

Product Options
  
  Quantity:
Basic Style

 
Pullover Style with Hood
 
 
Full Zipper with Hood
 
 
Pullover Style with NO Hood
 
 
Full Zipper with NO Hood
 
Size
Torso Length
Adds a number of inches to the back and front length of the selected general size.
Sleeve Length
For folks with long arms, or skinny torsos.
Climashield APEX Level

 The lightest in weight offers the least warmth, etc. 

 
2.5 oz/yd
 
 
3.6 oz/yd in body - 2.5 oz/yd for sleeves and hood
 
Shell Fabric

Please see our Fabric Page for help choosing the right shell material.

Liner Fabric

Front Pocket

This option adds a double sided entry hand warmer 'muff' centered below the pullover zipper. Omit for a 25 gram weight saving.

 
Add Kangaroo Pocket
 
 
No Pocket
 
Interior Zippered Chest Pocket
With a vertical opening hidden behind the main front zipper, these pockets are protected yet easily accessed.
The pockets adds 16 grams in size large.
Stuff Sack
Our stuff sacks are pretty dope, but current weight saving trends in ultralight circles eschews this once crucial item. So, opt out and save $ while also being very current.
 
Yes, please include a stuff sack
 
 
No stuff sack
 
  
  Quantity: