• Recycled: Every EcoRag is completely unique! They are largely made from thick cotton sweater cotton. This is super soft for frame cleaning and tough enough to wipe down your frame too. Everyone Ecorage is unique and upcycled!
• Compostable: Aside from the occasional nylon label and print, EcoRag is mostly compostable. It is biodegradable and can go on your compost heap if it ever wears out. It is Petrochemical free, so you're not putting fragments of petrochemicals into the environment when using it.
• Plush for Frame Cleaning
• Carbon Fiber Safe
• Made in Great Britain

Apparently too many people want sponges from the bottom of the sea, and people taking too many is damaging the ecosystem in various places. 

So growing sponges using fair trade principles is the way forward, rather than using sea sponges.