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features
All about the Groundwork
Breathable, moisture-wicking fabric provides light compression with an unnoticeable feel in stride
Won't sag out
Durable nylon stretches with you and retains its shape while resisting odors
Won't fall down
A redesigned waistband with internal drawcord stays snug + comfortable
Extra support
Double-lined fabric in the front panel (from hip through thigh) for added protection + warmth
Pocket it
Double-tiered side pockets can stow a phone, hat, gloves + nutrition
Keep it separated
An internal waistband pocket can stash card/cash or key
Versatile storage
Dual-entry stretch pocket in the back can store nutrition or double as a pass-through for a shirt or light shell
Zipperless ankle design
Articulated ankle shaping and a laser cut hem allow easy on/off + adaptable wearability to roll up the tight when warm
Stay seen
Integrated hi-vis reflective tape along the side seams along with Janji signature blue reflective logo and “watermark” on back increases visibility in low light
materials + specs
Groundwork Knit |
Weight Garment made in Vietnam |
Fabric Callout
Groundwork
High-performance, moisture-wicking stretch nylon with durable support. Explore more behind our tights and sports bra fabric.
SHOP ALL GROUNDWORKsustainability
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
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Janji Collective Membership
£25
Key member benefits:
- 15% lifetime discount.
- Priority access to all releases.
- Limited run Janji gear.
Janji Collective Membership
Key member benefits:
- 15% lifetime discount.
- Priority access to all releases.
- Limited run Janji gear.
The £25 membership fee goes toward supporting clean water initiatives through our clean water partner
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