how to clean the rubber bio-fin?

[Ladyvalea]

OK, I purchased the white colored bio-fin c series...but after one pool dive, I have black scuff marks on the sides of the fins...I'm just wondering how I can clean the marks off ? I tried rubbing with a little dish soap, no help!...I did use a pencil eraser and kinda rubbed most of the black scuff off! Any help??? thanks..

[Jim Lapenta]

Try soft scrub with bleach or Mr Clean Magic eraser. But buy alot of it. They will not stay white for long if you dive regular. Fins are usually black and that's not just to be cool.