[HIGH SPEED FLEXIBILITY] Enjoy the fun of snorkeling with over 30% faster flexibility due to highly flexible material. [WATER RESISTANCE REDUCTION] Reinforced guide hole reduces water resistance for faster diving speed and less leg muscle strain. [GREATER STABILITY] Streamlined drainage channels concentrate water pressure for improved stability underwater. [RAPID DRAINAGE] Double-channel design allows for quick water drainage, less resistance, and easy underwater swimming. [COMFORTABLE DESIGN] Soft, non-slip slip-on fins ensure comfort and prevent squeezing at the bottom of the foot.