The shoulder strap is made of elastic nylon, which is resistant to wear and tear, and can withstand high-strength pulling force. It is very soft and comfortable to wear. The material conforms to the EU environmental protection standards and has passed ROHS, SGS, REACH, CPSIA testing and certification. The length of the bottom can be adjusted, which is very convenient to use. Ideal for recorders, walkie-talkies, or other activities that want to shoot video from the "under helmet" view.