The new ZF series is more efficent than any other FW fin in market today. It consists some new high-tech materials,  new technologies,  totally new outline and the most efficent profile.

The ZF line has three different stifnesses: Soft, Soft minus and Soft minus-minus. The new Soft minus-minus is really soft, performs a lot of lift, BUT needs to be handled by care. This is only low-end racing product and the warranty for Soft minus-minus is three months (starts 14 days after we post it to customer). Actually we are pretty sure it will last much-much longer, but unfortunately there are always customers who are not using their fins in correct way...