PROFESSIONAL SWIMMING TRAINING EQUIPMENT - Our swim fins are a fun swimming tool, which can enhance the rhythm of leg exercises, enhance leg strength, correct leg movements, and the fins are like fish tails, the design allows the swimmer to learn to swim faster in the water HIGH QUALITY ELASTIC MATERIAL - The mermaid swimming monofin makes from TPR material, unmatched resilience, not easily deformed, soft and ultra-light materials make sure comf-ort and avoiding bruises when using them for a long time, let you comfortably enjoy swimming and swim faster. EASILY TO WEAR AND ESCAPE - Easy to put on/off, can tight easily with the laces. The center seam holds feet in place for superior control every time you use the dolphin kick to swim like a mermaid, easy to wear and take off will not rub the heel, a swimming weapon for professional swimmers or ordinary swimmers GREAT DESIGN AND COMFORTABLE EXPERIENCE - Soft foot pockets hold your feet in the swimming monofin for the most comfortable swim, other swimming monofins can hurt, pinch, or rub the feet, and creates a natural mermaid motion, helping to find a sense of balance and exercise the strength of leg muscles CHILDREN AND ADULT SWIMMING FINS - Our swimming training fins have professional protection levels suitable for adults and children, which can make you resist the waves when surfing while enjoying a romantic ocean trip. The new mermaid tail fins design will increase the interesting of water sports for kids, which a fabulous gift for adults, children and those who like swimming.