Create good flow lines: Good flow lines will create good speed because there is less resistance All swimmers will wear swimming caps because they want to create better speed. Our swim caps fit snugly for optimal performance and are contoured to reduce frictional drag for excellent hydrodynamic performance. This swim cap has a durable and stretchy surface for a comfortable feel. Non-slip design, easy to put on and take off. Professional quality material for every swimmer. For Long/Short/Thick or Curly Hair: This silicone swim cap has extra room for short/long or curly hair. Keep your hair safe and tangle-free while you swim in the pool^ Soft Waterproof Silicone: This swimming cap is made of silicone material. It has the advantage of being a highly elastic and tear-resistant material that will not deform after repeated use. Our swim caps stretch easily for the best fit. Skin-friendly, making you safer and softer. Great attention: Protect the swimming cap from scratches. Simple and elegant design There are many colors to meet the choice of most people. Keep Yourself Warm The air around the cap warms the air inside, it helps to warm the body directly, so the body will feel warm as well. It's also a good idea to use a swimming cap as a shower cap, don't hesitate. This shower cap is your best choice. Now you can enjoy bathing or swimming Number of pieces shipped: 1 piece Product color: black Product size: (approximately) the width of the opening is 20.5CM, the widest part in the middle is 24CM, and the height is 20CM