BREATHABLEThis Silicone Neck Support is designed with vents around the neck to provide support without causing pressure or cutting off blood flow or blocking air circulation. It keeps your neck cool and dry. You can breathe and cough freely. Perfect for hot summer. WATERPROOFThis Cervical Collar is made of 100% silicone material. which is soft and elastic without irritation to the skin. It is easy to clean and disinfect. can be washed directly with water. and can be dried in just a few seconds after washing. You can use it in the shower. just remove padding. you won't lose support when you need it. COMFORTABLE Designed according to ergonomics. 360-degree surrounding support. not only has a good "V" shape around the chin. making it not as stiff as other products. and give you maximum comfort while keeping the neck stable. The rising curves on both sides better support the neck. Perfect for daily use. HELP TO FIX BAD POSTURECan be used to prevent cervical spine diseases because of the chronic neck muscle tension. caused by desk work or long-term bowing. also as a support for the weak neck muscles. Suitable for people who play mobile phones. read books and play computers for a long time.