Martin Stepanek’s signature fins made of an even more responsive carbon fiber that meets the most important needs of freedivers.
The carbon fiber material compared to the already highly proven T700 is even more responsive and powerful. After a year of long testing, Martin carefully developed a fin with C4 that fit his needs and catered to the most important needs of freedivers and spearfishers from his experience in American waters. Thin side rails allow for the carbon blades to flex easier hence offering the highest possible level of performance. blade angle of 22° degrees for great power transfer.