Free delivery in Europe from 69 €

Billi London biodegradable legging
Billi London biodegradable comfortable legging
Billi London biodegradable legging is the future generation of legging
Billi London biodegradable everyday legging
SEV7N Biodegradable Legging
SEV7N Biodegradable Legging
Find easily your tights size with Billi London inclusive Size Chart

SEV7N Biodegradable Legging

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​​Do you need help repairing your legwear? Contact us on What's App every day! 

SEV7N is the future generation of legging and is named in homage to the first Billi London boutique in Seven Dials, London. 

Made with a blend of innovative enhanced biodegradable yarns, using 3D technology for maximum durability and superior comfort, they will quickly become your new favourites. Wear them seven days a week – at home, going out, to chill, to dress up, to run or for yoga. 


We deliver in the UK and in Europe and we aim to ship your order within 48 hours.

Standard Delivery: 3-5 days (£3.5 for the UK, 4.9€ for France, and 6.5€ for most of Europe).

Express Delivery: 1-2 days (£6.50 for the UK and 10€ for France).

Free delivery in Europe over 69€.

More info on our Delivery & Return terms here.

Key features:

- Black
- Premium and luxury yarn: 90% Amni Soul Eco® nylon and 10% ROICA ™ V550 elastane
- Appearance 150 denier
- Seamless at the crotch
- Curves toning and sculpting effect to beautify your natural silhouette
- A soft seamless waistband sewn by hands with natural tummy flattening effect
- 3D technology allowing a 360-degree flexibility
- Comfortable and soft for a second skin effects
- A stamp at the back to differentiate the front and back

Size Guide:

We have developed an advanced technical size chart, so you will know exactly which size to select for your biodegradable leggings.

What if I am in-between two sizes? Do not panic, you will find the perfect one for you too! View our size guide here to find your size.

Good for you, and the planet: 

Billi London leggings biodegrade in a record time of around 5 years*, they breakdown into biomass and biogas, creates renewable energies, and do not leave microplastics in landfills. 

They are ethically and sustainably made in Italy with solar-powered production & water recycling facilities.

For more information, check out our Sustainability page and our Biodegradability page. 

*In landfills. Reference system: ASTM D5511 - Std test.

Leggings Care Routine:

Machine wash at 30 degrees maximum. 

Do not iron your tights Billi London Care GuideDo not tumble dry your tights Billi London Care GuideDo not bleach your tights Billi London Care Guide