Outer layer stretched nylon belt: The outer layer of the wristband is an elastic nylon band that can be stretched to 54 cm. The outer adjustable Velcro seal is connected to the elastic nylon belt and can be adjusted according to personal needs to achieve a customized level of compression. . Relieve pain, provide support: Our wrist band can support the wrist, relieve pain such as carpal tunnel syndrome, arthritis, tendonitis, wrist fractures, and sprains, and accelerate the recovery of chronic and acute wrist symptoms. The arm support provides support and protection during activities that require a lot of wrist movement and is designed for sports enthusiasts. . Double Velcro closure: The wristband has a double Velcro closure. The double combination of outer Velcro and inner Velcro can be perfectly matched to the back of the elastic band; our wristband fits most wrists. Double compression with elastic force fits up to 8 inches in wrist circumference, perfect design with exquisite workmanship. . Breathable Neoprene: Durable, highly elastic and moisture-wicking latex-free neoprene blend materials for strong support, soothing warmth, and comfort. Our wristband is made of breathable neoprene, absorbing more air and making the wrist freer and more comfortable during exercise. It keeps you cool and comfortable during your activities.