The swimming cap is made of safe and premium silicone material, which is non-toxic, tasteless and durable. The cap is soft and skin-friendly, no irritation and no harm to your skin and hair. High-quality silicone material ensures swimming cap extremely tear resistance and durability. The soft silicone makes it easier to wear and can hold long and thick hair without feeling tight and suffocated. This swimming cap will fits your head snugly and would not slip off for its anti-slip design and superior flexibility. Swimming cap features excellent elasticity. So it is easy to put on and can be expanded to fit your head and hair, but will not be deformed after use. Swimming cap support customized logo, logo process for silkscreen. The prices for 4200pcs or over are based on ocean shipments.