SIZE COMPARISON: Extra (EX) compares to Flexi MD-XL, See chart for more details. PRODUCT DETAILS Our new patented design All day non-slip hold Easy slide release won't damage hair Dual pin flip to hold more or less hair Fits all hair types Up to 3 sizes in one! 100% water proof The patented Flexi Sport is made with high carbon spring steel that is encased in a TPE (Thermoplastic Elastomer) over-mold. TPE provides a strong barrier against oxidation and moisture, making the Sport 100% waterproof. The sliding pin is made of high grade polycarbonate and has a high tensile strength. All parts are latex free. Patent# US. PAT. NO. 12,458,123, European patent No. EP4161311 Don't settle for ordinary hair ties and plastic claws that hurt & damage your hair. The Flexi Sport is your perfect, style sidekick. No slip, no rip and cute, cute, cute! It's like the cherry on top of your workout ensemble or a splash of color for your home and office vibes. Plus, it’s part of our fabulous Spirit Wear Collection, making it the perfect way to flaunt those school or team colors."These are the best hair ties ever! So comfortable and very easy to use!"-Connie K. "Love the sports!"-Starla W. "I Love my sport clip."-Tina L. "I love these clips. Great around the farm or out on the town."-Starlette C. OTHER SIZES AVAILABLE: Extra Small (XS) compares to Flexi XXS-XS - Click here Medium (MD) compares to Flexi XS-MD - Click here