In Ones you'll find non-catalogue colour and size fin models. Sometimes these are a result of doubling up on custom orders, and sometimes these are experimental colours, sizes or models. These are not necessarily one-off fins, but they are not something we have in stock in the catalogue.
All fins in Ones are the same top quality as our normal catalogue fins, and also come with homemade fin sleeve and Hand Screw (single fins only) as standard.
If you see a fin in Ones which is no longer in stock and you like the look of, contact us and we'll let you know if we're able to make a duplicate up for you.