Swimming FinsThe swimming short fins derives from duck tipped flippers for improving swimming speed and stroke. High QualityThe snorkel fins are made of premium silicone material, highly flexible, delicate and soft. ErgonomicThe swim fins are with ergonomic design, proper fitting and comfortable to wear. Non SlipThe swim flippers for training is with non slip bottom, preventing the soles from slipping. Wide ApplicationsThe swim fins are lightweight, easy carrying in luggage or backpack, suitable for swimming, snorkeling, scuba diving, etc. Specification: Material: Silicone Size Chart: XS: outer length 27cm/10.63inch, outer width 13.5cm/5.31inch, inner length 20.5cm/8.07inch, inner width 8.5cm/3.35inch S: outer length 28cm/11.02inch, outer width 14cm/5.51inch, inner length 21cm/8.27inch, inner width 8.5cm/3.35inch M: outer length 32cm/12.6inch, outer width 16cm/6.3inch, inner length 23.5cm/9.25inch, inner width 9.5cm/3.74inch L: outer length 34.5cm/13.58inch, outer width 17cm/6.69inch, inner length 26cm/10.24inch, inner width 11cm/4.33inch Package Includes: 1 Pair ofKids Swim Fins Note: Please allow slightly errors due to manual measurement and different monitors.