Power Trip. Ultimate power with every kick. A new high-performance Atomic Aquatics fin at a moderate price. Atomic SplitFins have a flexible blade designed for “eas and efficiency of kicking.” Our BladeFins a e designed for “power and speed” with a moderately firm blade. New X1 BladeFins are designed with a firmer blade for “ultimate power” general purpose diving, tech diving, ext eme applications and alternate kicking styles.