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Highlights
features
All about the Groundwork
Breathable, moisture-wicking fabric provides light compression with an unnoticeable feel in stride
Advanced support
Targeted Anti-Bounce band coupled with a compressive fit throughout and lightly padded, removable inserts for high to medium support up to D+
Comfortable carrying capacity
Powermesh-reinforced racerback pocket carries phone comfortably without bounce
Visibility
Janji signature blue reflective logo on back
materials + specs
Groundwork Knit Power mesh lining |
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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