Five green t-shirts with unlikely ingredients

Unlock Editor’s Digest for free

FT editor Roula Khalaf selects her favorite stories in this weekly newsletter.

pangaia

pangaia C Fiber T-shirt, £55

Pangaia t-shirts use C fiber, which is made of seaweed powder and wood pulp; They are also treated with peppermint oil. Elsewhere, the brand makes a Nettle Denim jacket, where the cotton is blended with “regenerative wild Himalayan nettle”. Fiber C T-shirt, £55; cowboy nettle jacket, £175

8 bit sheep

This is the world’s first shirt with a naturally negative carbon footprint, achieved through regenerative farming of merino wool and solar energy. Even more original, a tag “links” the user to the contributing sheep, “allowing them to interact with the origins of their product.” 8 bits T-shirt, £110

hypernatural

hypernatural cotton-blend polo, from $135

HyperNatural offers “the first polo made from crab shells and jade stone” (and supima cotton). Jade refreshes the skin, crab fights body odor. Even the buttons are mother of pearl. Polo shirtfrom $135

Vollebak

Vollebak Cotton and SeaCell Black Algae T-shirt, £95

As well as Vollebak’s Garbage range, which turns old bulletproof vests into jumpers, or their polo shirts dyed with minerals and rocks, you can get a t-shirt from the Black Algae selection, which uses a more sustainable version of black dye. black algae T-shirt, £95