High Quality Silicone,environmental protection materials swimming flippers made using high quality soft silicone,soft silicone footing keeps you kicking for tonger without soreness.<br>Ankle FlexibilityFan shaped swimming fin design,unique fan-shaped foot mouth,short blade swim training Fins design,promotes shorter and faster kicks while generating propulsion through the water,increasing the speed and endurance of your swimming.<br>Kick easily and reduce fatigueSwimming flippers comfort is the king way,a blade thats too stiff will give you foot and leg cramps in short order,our flippers with elastcity flexible material,soft silicone flipper,pinch at will without deformation,toughness does not hurt the foot,lmproved comfort and safety,give you a better wearing experience.<br>Flippers purposeShort training fins for snorkeling swimming diving,size for girls and boys,kids and beginners for swimming,snorkeling,training and diving,used by competition and recreational users to build leg strength and speed.<br>Stereoscopic bottom stripe,Stable and non slipFlippers for swimming increase your swimming speed,enjoy snorkelin pleasure,bottom stripe design,force of friction big non slip,lower body training and heart rate strength training can be carried out at the same time.