Surfing Waves

I just bought a set of new future fins and on one of the bottoms its hollowed out and cracked I guess. Should I return these fins? Or does it not really matter. Here is a picture. Thanks.

Do you really need to ask this question?
If you bought it and you are not satisfied with it, ( it is damaged or not manufactured up to standard) take it back! Helps in two ways you get a functional fin or a refund and Futures knows there are faulty fins out there!
ALWAYS inspect the goods before you lay down your cold hard cash!

Looks like someone at the factory set the honeycomb inner to low in the mold. And / or a air bubble formed in the resin. It's not cracked, just a bad mold. You should return it and get a new set.