The MARES Avanti HC Pro FF Black & Red fins in size 46 feature a blade length ranging from 32.5 to 42 cm, combining an elastic technopolymer blade with a highly durable yet soft thermoplastic rubber blade for exceptional comfort and performance. Their design includes two extended soft side channels that enhance the channel effect, allowing the fin to bend into a “spoon” shape during each stroke, generating more thrust with less effort. The closed foot pocket is equipped with side ribs and rubber inserts for added softness and superior comfort, making these fins ideal for expert divers seeking durability and efficiency.