Newest Release

Artifact Capsule

Join Janji Collective

15% off for life

Free shipping on all orders $55+

Free exchanges + no-fuss returns

run everywhere
guarantee
free shipping on
orders over $55
free 60 day exchanges
+ no-fuss returns

Winter Groundwork Tight

Winter Groundwork Tight

Warmth without bulk and reflectivity for visibility in low light

COLOR >>  
W's Winter Groundwork Tight

Past Season Deals

size >>

 

THIS PRODUCT IS ONLY AVAILABLE TO JANJI COLLECTIVE MEMBERS

Join now to unlock access

JOIN JANJI COLLECTIVE

THIS PRODUCT IS ONLY AVAILABLE TO JANJI COLLECTIVE MEMBERS

Join now to unlock access

JOIN JANJI COLLECTIVE
run everywhere guarantee
free shipping over $55
free 60 day exchanges
Blake wears size M and is 5'7"Gabby wears size S and is 5'8" Chi-chi is 5'11" and wears size M Abigail is 5'7" and wears size S Lightly compressive fit, Size Chart

Don’t let winter stop you — weather the weather in the Janji Winter Groundwork Tight with reflective seaming for earlier sunsets and a lightly brushed interior for added warmth. Read more

Explore more

features

Cold weather running comfort
Breathable, moisture-wicking fabric provides light compression and a comfortable, soft feel

Soft but tough
Durable nylon stretches with you and retains its shape while resisting odors

Pocket it
Two deep side pockets can easily accommodate the largest of phones while minimizing bounce

Secure pockets
Enveloping back pocket provides added security and peace of mind while two internal pockets can stash a card and keys

For darker winter runs
Reflective side seams and reflective blue logos on front and back increase visibility in low light

Water-conscious design
Knit nylon fabric is specially designed with a more tightly-woven filament to reduce fabric microshedding, keeping your local water supply cleaner and your gear in like-new quality wash after wash

Fuss-free fit
Laser cut hems allow for a seamless finish and easy on/off

materials + specs

Groundwork Knit
68% nylon, 32% spandex

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

Garment made in Vietnam

sustainability

Groundwork Knit is made using a premium grade nylon that has a significantly tighter woven filament than standard synthetics. Tighter filaments mean less microfiber shedding in the wash-cycle, plus greater durability of the garment (longer lifespan, more wearing).

Groundwork Knit fabric is also 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.

JOIN THE COLLECTIVE

Already a Janji Collective member? Log in to unlock access now.

Customer Reviews

Based on 20 reviews
60%
(12)
25%
(5)
10%
(2)
5%
(1)
0%
(0)
A
Abby
Wear it for: Running, Hiking, Camping
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: L
Size Purchased: L
Durable

These tights are crazy comfortable and perfect in 25-35 degree temps. They are super lightweight even though they are for cooler temps and layer perfectly with the transit pant. The highlight of these pants though are that I took a sidewalk fall on a run recently and they did not rip or tear at all. Super surprised…I’m officially a Janji fan for life.

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

W's Winter Groundwork Tight

H
Hannah S.
Wear it for: Running, Hiking, Camping, Cycling, Everyday wear
Product Fit: Runs large
Height: 5'7" to 5'9"
Usual Size: M
Size Purchased: S
Best running pant

I can't believe I finally found a pair of running tights that work for me! I learned to size down from the groundwork shorts (normally a medium, I purchased a small in these) and they stay put. The only minimal complaint I have is the inseam. I'm 5'9" and these are about an inch above my ankle. Janji, a 29" inseam should be an option!

C
Cinnamongirl
Wear it for: Running
Product Fit: Spot-on
Height: 5'1" to 5'3"
Usual Size: S
Size Purchased: S
Winter running essential

The winter tights are made for winter running without being bulky. You can not go wrong with the groundwork-the mountain color is great and the pocket space is better than most tights!

B
Beth A.
Love these Tights!

I loved my initial purchase so much that I bought 2 more! I forgot that I had my phone in the pocket of these tights. It did not move at all. After a summer of running in shorts, I thought I would feel restricted in my first few runs in tights, but these are so comfortable that I barely registered the difference. I also love the color choices!

k
kendra m.
Wear it for: Running, Hiking, Cycling, Everyday wear
Product Fit: Spot-on
Height: 5'4" to 5'6"
Usual Size: M
Size Purchased: M
like a glove

they feel so comfortable after first try-on. i got these for a cooler weather biking/hiking trip i have coming up later this year. while i like tights most don’t provide warmth. wearing these throughout the day i was completely shocked how comfortable and don’t doubt they will be warm enough. already have more pairs in cart to order

K
Kathy F.
Wear it for: Running, Hiking
Product Fit: Spot-on
Height: 5'4" to 5'6"
Usual Size: M
Size Purchased: M
Groundwork tight

I love these tights. I think I’ve worn them just about every workout since they arrived. They have seen me through outdoor runs; hikes; spring x-c skiing, yoga, and strength sessions. They feel great and look awesome. I’ve used them in temps 28-50 F and felt comfortable. Thank you for my new tights. I love them ❤️

H
Haley A.
Wear it for: Running
Product Fit: Spot-on
Height: 5'7" to 5'9"
Usual Size: S
Size Purchased: S
Race-day tested! Warmth meets durability

I recently wore these during a half marathon in Rhode Island where it was 20F at the start, felt like 5F, with about 15-20MPH winds. For full disclosure, I work for Janji, and moved to New England this past year from the South, so I'm a bit of a baby about the cold. Two observations: 1. Once I started running, these were definitely warm enough, even with the gusts of wind. I'm on the taller side, and could have done with even more length while we were standing around, but I didn't mind once I started running; 2. This fabric is DURABLE. I never fall while running, but I tripped during the race and hit the road so hard my bib ripped off, but the tights themselves stayed intact! Definitely a silver lining in an otherwise embarrassing moment!

L
Lauri
Wear it for: Running
Product Fit: Spot-on
Height: 5'1" to 5'3"
Usual Size: S
Size Purchased: S
Groundwork Winter Tight

I love these so much. They are true to size. They are soft and smooth but also a comfortably snug stretch-fit. In a nutshell, they do what they are supposed to do while remaining 100% comfortable. I do have warmer tights (I live in Wisconsin, it's below zero often.

K
Kaitlin S.
Wear it for: Running
Product Fit: Spot-on
Height: 5'1" to 5'3"
Usual Size: S
Size Purchased: S
Great performance tights!

These are a great pair of winter running/ racing tights! I won't pick them for days below 20 because they aren't my thickest winter tights, but I think that's what makes them great for racing/ days you want to go fast (and they could work as a base layer tight if your want to layer)! For reference, I do own the 7/8 groundwork tights in size Small and would say that these full length ones aren't quite as snug in the waist (which I don't mind at all!)