W's Thermalrunner Insulated Jacket

ultralight warmth, targeted PrimaLoft® insulation, packable
Color Cherry
Size
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Winter protection without the bulk – Janji's Thermalrunner Insulated Jacket features targeted insulation for warmth where you need it, and only where you need it.

Materials + Specs

Zephyr
100% nylon with PFC-free C0-DWR (durable water repellency)

PrimaLoft Gold Insulation Active
100% nylon (45% recycled)

Climate
0~32º F

Select your size:
Gear added to cart:
W's Thermalrunner Insulated Jacket
W's Thermalrunner Insulated Jacket
Qty: 1
$228
Checkout
  • 5 stars: 69 (88%)
  • 4 stars: 3 (4%)
  • 3 stars: 2 (3%)
  • 2 stars: 2 (3%)
  • 1 star: 2 (3%)
t
trisha
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4
Weight: 110-130 lbs
Love this awesome jacket

Love this. Lightweight yet perfect for cooler days. Love the visibility it provides. I’ll be ordering other items given the awesomeness of this jacket.

S
SLM
Product fit:
Runs small
Runs large
Usual Size: L
Size Purchased: L
Height: 5'7
Michigan weather and harsh winters !

Michigan weather and harsh winters ! I own two of these jackets and love them for December to March cold snowy windy weather ! I freqently am asked about why I go running in the nasty weather ? The right gear !!

J
JM
Product fit:
Runs small
Runs large
Usual Size: XS
Size Purchased: XS
Height: 5'4
Weight: 110-130 lbs
Please restock!!!

I used to run in this jacket in the winter and wear it to my overnight shifts in the hospital. It was the most beloved item of clothing I had for adaptability and warmth and… my GSD puppy chewed the zipper off! Please, I need another one. Expensive and worth every penny.

L
Landon
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'1" to 5'3"
Weight: Under 110 lbs
Great winter jacket

Lightweight and warm!

L
Laura
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 110-130 lbs
love this jacket!

perfect weight for walking/biking at temps in the 40s. Looking forward to running in it come next winter.

A
Alexis
Product fit:
Runs small
Runs large
Usual Size: XL
Size Purchased: XL
Height: 5'4
Weight: 150-170 lbs
Highly recommend!

This was perfect for winter running. I was doubtful at first given how light the jacket is. However, paired with the merino hoodie and tops I stayed warm during runs. I run in the city often, so even when I had to stop at lights I stayed warm despite temps under 30 degrees. Highly recommend as an outer shield.

N
Nicole
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 110-130 lbs
Pure magic

When I first opened it, I was disappointed by how lightweight it was, but it is now my favorite jacket. Warm yet super packable. I just ordered another in a different color.

L
Laura
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4
Weight: 110-130 lbs
Comfortable, warm, exactly what I needed for

Comfortable, warm, exactly what I needed for night time trail endurance.

A
Anonymous
Product fit:
Runs small
Runs large
Usual Size: XS
Size Purchased: XS
Height: 5'1
Weight: 110-130 lbs
lightweight jacket that keeps you warm in cold

lightweight jacket that keeps you warm in cold temps. Wish it had thumb holes.

A
Anonymous
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'1
Weight: 130-150 lbs
For NY cold

Love this running jacket for NY cold winters

R
R.S.
Product fit:
Runs small
Runs large
Usual Size: XS
Size Purchased: XS
Height: 5'7" to 5'9"
Weight: 130-150 lbs
Awesome jacket

Love this jacket. Really amazing how warm it is for the weight, breaks the wind pretty well, and has thoughtful details-- especially appreciate the double-ended zipper, which really helps once you warm up! I'm usually between an XS and S, and this one was perfect as an XS.

J
Jordan
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: M
Height: 5'4" to 5'6"
Weight: 130-150 lbs
Incredible

This is the best over layer jacket I have ever worn. You can tell it was tested and designed by runners who understand running in cold weather. I sized up so I could fit other layers under it and it’s absolutely perfect.

D
Dawn
Product fit:
Runs small
Runs large
Usual Size: XS
Size Purchased: XS
Height: 5'1" to 5'3"
Weight: Under 110 lbs
Reflective Thermal Runner Jacket

Have to add this to the must haves and must designs. I returned home north to the Colorado Cold. The jacket has proven wind resistant and holds great qualities for low light running to be seen while out doing early morning and evening runs in the cold. I hope Janji and other companies take note to design more gear like this, from its desert series, designed for Black Canyon Ultras. I haven’t been able to part with the money for a jacket like this, until they made the jacket reflective and useful in more than one way.

K
Kelly
Product fit:
Runs small
Runs large
Usual Size: M
Size Purchased: M
Height: 6'0" to 6'2"
Weight: 130-150 lbs
Happy customer

I am so happy with this running jacket! It keeps me warm and is very lightweight. It is awesome!

A
Annie
Product fit:
Runs small
Runs large
Usual Size: XS
Size Purchased: XS
Height: 5'1" to 5'3"
Weight: 110-130 lbs
Love it

Used jacket for backcountry skiing.
It was perfect for skinning up the mountain. Light weight, breathable, comfortable

K
Kathleen
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 130-150 lbs
Worth the money!

Wow! This jacket actually keeps me warm during a Midwest winter. Fits great. Feels great. Even has enough room for an extra layer if wanted. Worth every penny!

A
Amihan
Product fit:
Runs small
Runs large
Usual Size: XL
Size Purchased: XL
Height: 5'7" to 5'9"
Weight: 190-210 lbs
Thermalrunner Jacket

Gorgeous fit; warm and acclimated love for brisk walking and running; versatile

J
Jessie
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 130-150 lbs
Worth the money

Way better than any other windbreaker. I get a lot of use out of this jacket! Fits great! I love how it’s not very noisy.

L
Lisa
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 110-130 lbs
Amazing jacket!

I’ve never talked so much about a jacket before! This jacket weighs almost nothing and keeps you incredibly warm on the coldest days. It’s magical.

M
Mary
Product fit:
Runs small
Runs large
Usual Size: S
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 110-130 lbs
Lightweight, Warm Winter Activity Jacket

This is the perfect lightweight jacket with midweight warmth. I love this jacket, it's exactly what I've been looking for to take with me in the summer on high altitude mountain runs and in the winter on nordic skis between 6 and 15 miles long. It is truly lightweight, fits perfectly in my small running vest, and is way warmer than I expected. I am 5.5", 130 pounds, I wear XS or S in tops and jackets. I could have gotten the XS, but grateful for a little extra room for layering.

M
Momoka
Product fit:
Runs small
Runs large
Usual Size: XS
Size Purchased: S
Height: 5'4" to 5'6"
Weight: 110-130 lbs
Best winter jacket (even under 10°F/-10℃)

The BEST! Super light, amazingly warm but not too hot.
I wore this jacket to runs during winter in New England (9°F to 30s°F), from speed works, long runs to light jogs. I seriously do not know how this works, it’s magical. I have other heavier winter running jacket like Another Mile and Down for it all from Lulu, I only want to wear this one now.
I chose a size bigger since my normal size (XS) was sold out and I wanted to have layers. It fits well especially I want to wear thicker layers. I will buy XS if there will be another color next season:)