Men's Fuse Long John – First Lite Performance Hunting
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Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John
Men's Fuse Long John

Men's Fuse Long John

Lightweight 200 Aerowool

$90.00 USD

Color/PatternFirst Lite Cipher
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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 crew, quarter zip and a Henley

Product Videos

Men's Fuse Long John Details

Layering Position

  • Next to Skin


  • 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
  • Naturally UV absorbent to eliminate shine

How It's Built

  • Material: Aerowool
  • Cut: Athletic
  • Primary Uses:
    • Spot & Stalk
    • Tree Stand
    • Waterfowl
    • Upland
    • Fishing
  • Material Weight: 200 Lightweight
  • Weight: 6oz.

Where to Use

  • Temperature Range:
    • 20F - 45F
    • 45F - 60F

Customer Reviews

Based on 22 reviews
Product Size: XL
Height: 6-0
Weight: 195
Fit Comments: Perfect and no shrinkage
Location: Southern and Central California
Primary Use: Huntung
MensFuse Long John

Perfect base layer for Southern California bird hunting. It’s cold in the mornings, but warms up during the day. It’s ideal for those 35-70 degree days, plenty warm but doesn’t make you sweat when the temps go up. I’ll buy more for sure.

Product Size: L
Height: 5' 11"
Weight: 180
Location: Colorado
Primary Use: Western Big Game and Waterfowl
Western Big Game must have

This piece is the perfect baselayer from archery season mornings to all day November hunts

Product Size: M
Height: 5'9"
Weight: 170
Location: Colorado
Primary Use: Hunting
Fuse Long John

Great base layer. Kept me warm and dry during a recent Colorado elk hunt.

Product Size: L
Height: 5’-10”
Weight: 185
Location: Skiing, hunting
Primary Use: Baselayer

The Fuse long John’s were one of the first merino wool pieces I purchased. The 200gsm is perfect for use as a baselayer while skiing or hunting in Colorado. I have had it for 2 seasons using around 35 days a year. It has held up perfectly, no rips or tears.

Product Size: XL
Height: 5'10"
Weight: 225 lbs.
Fit Comments: Fits perfectly. Not to snug and no excess length.
Location: Hunting, fishing, and outdoors
Primary Use: Baselayer
Fantastic drying capability.

I wore these a few weeks ago in low 40's temp and had zero issues after being sweaty walking in. They dried fast and kept me warm no problem. This was while wearing the corrugated guide pants over top. They work fantastic. Today we went out in 20 degree weather. No issues with the pants at all. I wore guide pants with these as the base layer and overalls. This afternoon was warm while walking in and I sweated pretty good. They dried quick and kept me warm when the temps started dropping fast. I was never cold at all. I now need to buy a set for the wife.