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Mercury Track Pant

Mercury Track Pant

COLOR  
W's Mercury Track Pant
size

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Gabby is 5'8" and wears size SBlake is 5'7" and wears size M Slim tapered fit, Size Chart

Exceptionally soft, the coziness of these track pants is rivaled only by their performance. Made of our Mercury Knit fabric, these 4-way stretch joggers combine lightly peached warmth, moisture-wicking management and dependable protection with secure, roomy pocketing for cold weather running pursuits. Read more

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features

Cold weather running comfort
Breathable, moisture-wicking Mercury Knit excels at transferring sweat + heat away from the body for comfort during prolonged efforts

For when the mercury drops
Lightly peached on both sides, Mercury Knit has an exceptionally soft hand feel while providing cozy warmth + thermoregulation without added weight

Snug comfy fit
Minimal, flat elastic waistband with an internal drawcord for a completely smooth, secure fit

Freedom of movement
4-way stretch fabric combined with an inner gusset panel + ergonomic seaming on the outer thigh allow for unrestricted range of motion

Hand warmer pockets
Two zip side pockets can stash gloves, wallet, or nutrition while a bungee loop is integrated into the right side pocket to secure keys

Roomy back zip pocket
A secure back pocket with nylon zipper pull can easily secure most phones sizes (with case) while minimizing bounce in stride

Flat hems
Minimal elastic hem bands allow for easy on/off + keep the pant in place when in motion

Visibility
Janji signature blue reflective logo on front + “watermark” on back ankle increases visibility in low light 

materials + specs

Mercury Knit
69% nylon, 31% spandex

Weight
282g / 9.9oz (M's Medium)

Garment made in Vietnam

Fabric Callout

Mercury Knit

A 4-way stretch fabric with light peaching on both sides for breathable warmth without added weight, Mercury Knit reinvents how cold weather performance gear should feel — it’s a new level of winter running comfort.

SHOP ALL MERCURY KNIT

sustainability

Mercury Knit is made of premium, durable nylon and is bluesign® certified meaning it is free from harmful chemicals and is fabricated in a way that meets a high environmental standard.

Learn more about our sustainable initiatives here.

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Customer Reviews

Based on 57 reviews
84%
(48)
11%
(6)
2%
(1)
4%
(2)
0%
(0)
S
Shimrit B.K.
Wear it for: Running
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: S
Size Purchased: M
Perfect winter running pants

I was a little hesitant since I had a sizing issue with Janji pants in the past, but this one is true to size and such great asset to my winter running wardrobe. They are light and soft, but surprisingly warm, and made my early morning runs in freezing temperatures so much easier and fun. The back pocket is also well made and holds my phone without any movement. The only thing I would improve is making a slight longer version that would cover the ankles. Other than that - highly recommended!

c
carla W.
Wear it for: Running, Cycling
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: XL
Size Purchased: XL
My favorite

My favorite running pants and cycling

S
Sandy J.
Wear it for: Running, Hiking
Product Fit: Spot-on
Height: 5'0" or shorter
Usual Size: M
Size Purchased: M

Most Confortable

D
Danielle S.
Wear it for: Running
Product Fit: Spot-on
Height: 5'4" to 5'6"
Usual Size: M
Size Purchased: S
Love

I have purchased two pairs of these pants for cold weather running and they are perfect. Roomy enough to wear a base layer underneath and perfect on their own.

M
M. B.
Wear it for: Running, Cycling
Product Fit: Spot-on
Height: 5'1" to 5'3"
Usual Size: S
Size Purchased: M

Very happy with the quality and fit of these. I'm a size small/4 in most brands, but I followed the advice to size up and I am very happy with a medium. I've worn these running in cool weather (above freezing but not by much) and they are the perfect weight for the second mile. I was worried with the cut the it would bag or look awkward (joggers can be hit or miss) but it's a very flattering fit. So while I would have kept wearing them no matter what for running, I'm happy to wear them around the house and out on quick errands. The fabric is very soft--I keep worrying there will be catches or pulls, but after a few weeks so far so good!

H
Hsien-wen T.
Wear it for: Running, Hiking, Cycling
Product Fit: Runs large
Height: 5'4" to 5'6"
Usual Size: S
Size Purchased: S
Excellent quality

These pants are as comfortable as described. I wore these hiking in Madeira where the weather can change like the four seasons in a single day. I am 114 lbs, 5’4 tall. I normally wear a size XS or Small, I opted for a Small, which turned out to be a bit large. However the drawstring helps, so I didn’t bother returning these. Next time I’ll know better.

M
Margot B.
Wear it for: Running
Product Fit: Runs large
Height: 5'7" to 5'9"
Usual Size: M
Size Purchased: M
so comfy

These joggers are extremely comfortable and great for runs on cooler days

B
Bethany C.
Wear it for: Running
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: S
Size Purchased: S
Thumbs up!

I do love the track pants! Very comfy and used for winter running with a tight underneath. My order did have a pair of gloves too which still have not come. The packing list didn’t indicate that they would be sent separately, so I reached out to customer service just to make sure they would be sent separately later. Maybe some added transparency to the packing list would have improved this, just so I didn’t worry about not receiving it. Thank you and love this company and your product!

E
Eliza M.
Wear it for: Hiking
Product Fit: Spot-on
Height: 5'1" to 5'3"
Usual Size: XS
Size Purchased: S
my new obsession

I really love these track pants. I love the soft strong fabric, I love the cut. I now have two pairs, and I've bought a pair for everyone in my household. A great all-around outdoor pant

A
Asha M.
Wear it for: Running, Hiking, Camping, Climbing
Product Fit: Spot-on
Height: 5'1" to 5'3"
Usual Size: S
Size Purchased: S

W's Mercury Track Pant