They have double layer wind-resistant shell and binding, feature 100% Polyester Thermolite for great insulation and they are adjustable in case you have a huge noggin.
它有双层防风罩和固定绑带，100%保暖涤纶，绝对保温！ 并且头大的话，耳罩可以调整。
2
For the tool to meet double insulation safety standards it must be marked on the case 'double Insulated.
对于符合双重绝缘安全标准的工具，必须在其外壳上标注“双重绝缘”字样。
3
Method for repair and strengthening of underground cold storage without thermal insulation in case of frost damaged lining.