It's January, so someone's Mum takes your sweater and turns it into a scarf. You can post it to her and she'll post it right back - your new scarf that is.
It could be an adorable front, there may not really be a Mum behind there, but Reknit keeps it simple:
1. Send sweater to Reknit's Mum.
2. She unravels and knits it into something new.
3. A brand new, hand made, one of a kind scarf is sent back to you.