1.High Quality Rubber,Environmental Protection MaterialsMade using high quality rubber,soft rubbe footing keeps you kicking for tonger without soreness,give you a better wearing experience. 2.Fins DesignLong bladed fins and closed flippers,buoyancy from the flippers lifts legs to help swimmers maintain proper body position while lap training,increase speed,and improve posture. 3.Flippers Usesour flippers fins is suitable for kids, boys,girls, Young Men,and Women to swim,snorkel, train and dive,used by competition and recreational users to build leg strength and speed. 4.Kick Easily,Reduce FrictionThese fins should be worn with wet feet to reduce friction between shoe and foot,It is recommended to apply body lotion on feet before wearing. 5.Swimming Fin SizeFind the correct fin size.