• Very warm: the lambswool insole is very warm and comfortable to wear, keeping your feet warm all day, ideal for winter boots and other shoes. • Arch support: the lambswool insole has the function of supporting the arch of the foot while keeping it warm and comfortable, allowing you to walk and stand more comfortably, which is very suitable for people who need to stand for work. • Super breathable: lambswool is a high-quality natural material, breathable, and the insole made is also breathable and keeps your feet dry all day. • Scope of application: suitable for different types of shoes. Especially in the cold winter, lambswool insoles are a good choice for you!