Item Type: Swim Fins Material: TPR+PP Product Color: As Pictures Shown Product Weight: Approx. 550-810g / 19.4-28.6oz Package List 2 x Swim Fins 1Highly flexible material, flexibility speed up by more than 30%, strong and powerful kicking, you can enjoy the fun of snorkeling 2Reinforced water flow guide hole effectively reduces the water resistance and reduces the strength of the leg muscles during diving and improve diving swimming speed. 3Reasonable streamlined distribution of drainage channels can concentrate water pressure and bring greater stability. 4Doublechannel drainage, rapid drainage, less resistance, easy to swim under the sea. 5The slipon fins are soft and nonslip at the bottom, comfortable and not squeezing the bottom of the foot. 6Convex design increases friction, has better antiskid effect, and makes swimming and diving easier.