Offer new Atomic Splitfins in size XL, I bought matching my neoprene trocki (is also sold). But I immediately switched to a trilaminate trocki, which has significantly less marterial on the feet, so the fins are too large. Have never been dived and I have paid 179, - EUR. Would like to have 100, - incl. shipping for it.
Some information I found on the net:
With the Splitfin from Atomic you shoot in the water like a torpedo. The ultimate drive for the diver or vice versa you need almost no more force to get forward with this split fin. A touch of fin stroke is enough and thus the diving time is extended.
Atomic's Splitfin has a radically new approach to propulsion for divers. Even at the slightest foot stroke, the split leaf of Atomic's splitfin deforms like a pair of wings. These drive you through the water with reduced resistance. Unlike traditional fins, Atomic's Splitfin swings with less force and effort for better continuous speed and comfort. Independent tests have also shown that the splitfin produces less air consumption due to its unique shape.
And the manufacturer's side:
http://www.atomicaquatics.de/splitfins.html
Ingelheim