Comfortable Soft Silicone: The Swimming Cap is made from 100% soft silicone, Skin-friendly, easy to put on/put off. No worries for dragging hairs or falling off when swimming. The premium silicone material ensures excellent elasticity. The swim caps is stretchable easily and fit for different head sizes and hairstyles. Comfortable fit: Ergonomic 3D shaping helps create a perfect fit, strategic cushion under ear contact points reduces pressure, while the material is designed not to snag or pull hair. Anti-slip Design - Optimal Fit:A textured interior lining helps keep the cap in place while also giving you the ability to remove the cap quickly and easily without fear of snagging or pulling hair. Swim lap after lap without worrying about it sliding off. Comfortable for Long Hair and Short Hair. STRONG STRETCHES: Bigger size then normal swim cap, suitable for long hair and short hair, fits comfortable and anti-slip, easy to put on and off. Waterproof: The silicone swimming caps work very well to reduce water from entering, keeping hair dry. They will protect your hair (especially dyed hair) from heat loss, sunbeams, chlorine or salt water.