Sustainability

Our sustainability story.

What goes into a pair of Flissie boxers, from the bamboo forest to your drawer, and the claims we leave out along the way.

Model with pink hair wearing Flissie women's bamboo boxer shorts in taupe white with a white T-shirt
From the forest to your drawer

Five stops between the bamboo and you.

  1. 1. The forest

    Bamboo from FSC® certified forests.

    Our boxers start as bamboo, grown in FSC® certified forests. The cut is controlled, so harvesting doesn’t affect the overall health of the forest itself.

  2. 2. The fibre

    Tanboocel bamboo viscose, made in a closed loop.

    The bamboo is made into Tanboocel bamboo viscose in a closed loop process, which means excess water and gas are recycled. Tanboocel is FSC® certified.

    The least sustainable fabrics, and where bamboo viscose sits
  3. 3. The fabric

    Soft, breathable and dyed to OEKO-TEX Standard 100.

    95% Tanboocel bamboo viscose with 5% elastane, so the fabric stretches and recovers its shape. Dyed to OEKO-TEX Standard 100.

    Shop women’s bamboo boxers
  4. 4. The parcel

    Plant-based packaging.

    Your order arrives in corn starch PLA, a plant-based material made from renewable resources rather than petroleum-based plastic. When you’re done with it, put it in your normal rubbish bin, not the recycling bin.

  5. 5. Your drawer

    Wash at 20°C.

    A 20°C wash is gentler on bamboo viscose and uses less energy than a 40°C wash. Our care guide has the full routine, from wash bags to drying, and our hand washing guide takes you through washing by hand.

    Read the care guide
In plain words

What we won’t claim.

Bamboo comes with big promises attached. Here’s what we leave out, and why.

  • Biodegradable

    Our boxers are 5% elastane, which is what lets them stretch and recover. So we don’t call them biodegradable.

  • Eco-friendly

    Turning bamboo into viscose is a chemical process. That’s why we chose a fibre made in a closed loop, and why we’d rather show you how it’s made than give it a label.

  • Antibacterial

    Claims that fabric made from bamboo fights bacteria don’t hold up once the bamboo has been made into viscose, so you won’t see them from us.

What we do say, we can show you: bamboo from FSC® certified forests, a fibre made in a closed loop, fabric dyed to OEKO-TEX Standard 100 and plant-based packaging.

FSC logo
About FSC®

Why FSC® matters.

FSC® was founded by a group of environmentalists including Greenpeace, indigenous peoples, development cooperation organisations, forestry producers, workers, the wood industry, scientists and forest technicians, to create an alternative to forestry destruction.

Buying from an FSC® certified company means buying a cellulose product, and therefore bamboo viscose, that doesn’t contribute to the destruction of forests.

Always learning

Want to discuss further?

We’re always looking for new ways to reduce our environmental impact. Sustainability is a journey with room to learn and improve, so if you have ideas on how we can do better, email us at community@flissie.com.

For more reading on slower fashion, here are 12 UK sustainable fashion blogs worth following.

Worldwide shipping — Flissie women’s boxer shorts

Worldwide Shipping

Free UK delivery & worldwide shipping available

Klarna buy now pay later Flissie bamboo womens boxers

Klarna

Buy now, 3 interest-free payments every 30 days

Eco-friendly bamboo women’s boxers

Bamboo viscose

95% Tanboocel bamboo viscose from FSC® certified forests, dyed to OEKO-TEX Standard 100

Clearpay buy now pay later Flissie bamboo womens boxers

Clearpay

Buy now, 4 interest-free payments fortnightly

Sustainable packaging for Flissie women’s boxer shorts

Plant-based packaging

Plant-based corn starch PLA, not petroleum plastic

Model wearing Flissie women's bamboo boxer shorts in sage green with a white T-shirt
Try a pair

60 days to decide.

Wear them, wash them, and if they’re not right, we’ll refund you. Free UK delivery on every order, and a free size swap on your first.