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Men's Fuse Long John
Lightweight 200 Aerowool

When temperatures begin to fall but breathability and dry times are still concerns, the Men's Fuse Long John is your go-to base layer. Featuring a comfortable, jacquard waistband and a fully articulated fit designed to leverage the structure and stretch of our Aerowool fabric, the Fuse Long John epitomizes versatility in the field.


Lightweight 200 Aerowool construction combines the finest, 17.5 micron merino wool available with 37.5-activated nylon fibers to create a super-charged fabric with incredible performance benefits. What you get is enhanced odor resistance, exponentially improved dry times, increased durability and moisture wicking, and a fabric that can cool you down when you're heating up and warm you up when it's cooling down.

The Fuse Lightweight 200 Aerowool is also available in a men's a men's crewquarter zip and a Henley


$90.00
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Product Details

Layering Position

  • - Next to Skin
    • Features

      • - True to size: Purchase your normal size to wear over or under other layers
      • - 17.5 micron, ultrafine, merino wool
      • - Lightweight 200gsm jersey knit fabric provides exceptional versatility
      • - Exclusive 37.5 Active Particle Technology to exhaust moisture and maintain optimal core body temperature
      • - Full length
      • - Next-to-skin fit for maximum comfort and support
      • - Jacquard waistband
      • - Fully functional fly
      • - Flatlock seams for next-to-skin comfort
      • - Machine wash, line dry
      Cut Athletic
      System Position Next to Skin
      Material AeroWool
      Actual Product Weight Size MD 6 oz.
      Primary Usage Spot & Stalk, Tree Stand, Waterfowl, Upland, Fishing

Product Videos

Fuse
AeroWool Technology

Build your Kit

Reviews

5
of 5
15 Reviews
Fit
Runs Small
Perfect
Runs Large
Fit
Small
Perfect
Large
Great base layer!! 9/10/2018

Awesome base layer!!

Nickname: Bill from Wisconsin
Height: 5'6" - 5'8"
Weight: 190lbs - 200lbs
Size: M
Location: Colorado
Use: Spot & Stalk
Fit
Small
Perfect
Large
Great layering piece 8/29/2018

The fuse long john is an essential part of my midseason whitetail hunting system. It regulates temperature very well and is comfortable enough for all day sits in the tree stand.


How it fits
Length is long enough for tall guys.

Nickname: Dalton
Height: 6'4" - 6'6"
Weight: 210lbs - 220lbs
Size: XL
Location: Missouri
Use: Tree Stand
Fit
Small
Perfect
Large
New to wool 8/29/2018

I hunt whitetail primarily in Alabama but I’ve done so much research about the superior performance of wool products that I’m so excited to finally invest in a product as widely respected as first lite

Nickname: Jake
Weight: 170lbs - 180lbs
Size: L
Location: Alabama
Use: Tree Stand
Fit
Small
Perfect
Large
Good first impressions 8/29/2018

I wear 34x32 jeans and the large seems to fit me well, maybe a tad long but it may shrink up a little after washing. The construction looks good and it feels warm. I haven’t tested these in the field but I think they will work well. I plan to mostly use the fuse long johns for sleeping during late season hunts, they might be too warm for hiking around.

Nickname: Brad
Height: 5'10" - 6'
Weight: 200lbs - 210lbs
Size: L
Location: Colorado
Use: Spot & Stalk
Fit
Small
Perfect
Large
Perfect fit 8/29/2018

Weight and fit is perfect for a taller guy. Crotch is high enough not to pull down and pant leg is long enough so that they don't ride up calves. The fuse set will be my foundation for midwest whitetail hunting in temps from 80F to 0F. Having prior experience with merino baselayers I expect these will perform very well.

Nickname: d_rek
Height: 6'2" - 6'4"
Weight: 230lbs - 240lbs
Size: XL
Location: Michigan
Use: Tree Stand
Fit
Small
Perfect
Large
Comfortable bottoms 8/29/2018

These bottoms are going to layer great under my fleece pants in waders during duck season.


How it fits
Fit great. Went with medium for a snug fit

Nickname: Ray
Height: 5'10" - 6'
Weight: 200lbs - 210lbs
Size: M
Location: Ohio
Use: Waterfowl
Fit
Small
Perfect
Large
Great product 8/29/2018

I run hot, so ima use these for late season help take the sweat from my legs and wick it away as well as keeping warm.

Nickname: Christopher
Height: 5'8" - 5'10"
Weight: 190lbs - 200lbs
Size: L
Use: Spot & Stalk
Fit
Small
Perfect
Large
Nice and toasty! 8/29/2018

I am so glad I picked these up. They feel great. They are going to be my baselayer on a post-rut 2nd rifle Colorado bull elk hunt. I expect the cold won't be a factor. Shipping time was super fast as always, even during a major sale. Excellence all around, as per the usual FirstLite custom.

Nickname: Levi
Height: 5'8" - 5'10"
Weight: 170lbs - 180lbs
Size: L
Location: Texas
Use: Spot & Stalk
Fit
Small
Perfect
Large
Feels amazing 8/29/2018

These things fit awesome, feel awesome, and perform awesome! Super comfortable, do not really know you have on a pair of long underwear. If your on the fence, jump off and buy these things.

Nickname: Jasonlee
Height: 6'4" - 6'6"
Weight: 210lbs - 220lbs
Size: XL
Location: Kentucky
Use: Waterfowl
Fit
Small
Perfect
Large
Fuse long John 8/29/2018

Much better fit than previous version I bought several years ago. These fit excellent.

Nickname: JOE
Height: 6' - 6'2"
Weight: 200lbs - 210lbs
Size: L
Location: Minnesota
Use: Tree Stand
Fit
Small
Perfect
Large
Warm 8/29/2018

Really warm can’t wait to test the during late season.

Nickname: Phillip
Fit
Small
Perfect
Large
Fits/feels 8/29/2018

I don't get very cold in the legs so I got the lighter option and they feel amazing. These will work well with my parents during the later season.


How it fits
I have thick thighs and thesefit well.

Nickname: B.A.Tanker
Height: 6' - 6'2"
Weight: 230lbs - 240lbs
Size: XL
Location: Idaho
Use: Spot & Stalk
Fit
Small
Perfect
Large
Great fit. 8/29/2018

Very nice new material. Can’t wait to use it in. the field.


How it fits
Fits perfect.

Nickname: Kenneth
Height: 6'4" - 6'6"
Weight: 230lbs - 240lbs
Size: XL
Location: Michigan
Use: Spot & Stalk
Fit
Small
Perfect
Large
Comfortable 8/29/2018

Have yet to wear these hunting but very happy with my first impressions. They are lightweight and a great fit. They don't seem like they would be uncomfortable for wearing long periods of time of on the move. Would highly recommend this product

Nickname: DERRICK
Height: 5'8" - 5'10"
Weight: 160lbs - 170lbs
Size: L
Location: Colorado
Use: Spot & Stalk
Fit
Small
Perfect
Large
Very Nice 7/18/2018

A little lighter than the Allegheny bottoms that I am used to, which will be perfect for mobile hunts or layering under heavy base layers. Like most of the 2018 line, they are very comfortable.


How it fits
Right on

Nickname: Clint
Height: 5'8" - 5'10"
Weight: 160lbs - 170lbs
Size: L
Location: Colorado
Use: Spot & Stalk