【Extreme Winter Warmth】Both the lining and removable insole are made from high-quality wool blend material, which locks in heat. Paired with the warm synthetic leather upper, it keeps your feet warm even on the coldest winter days.【Premium Materials & Thoughtful Details】The upper is made of durable and easy-to-clean synthetic leather, with a plush, soft lining. The high-resilience EVA insole provides cushioning and rebound while offering support. Every detail, from material to craftsmanship, is dedicated to giving you a high-quality home experience.【Indoor & Outdoor Slip-Resistant Sole】Features a lightweight and wear-resistant EVA sole that offers reliable traction and anti-slip performance. It ensures your safety whether you're walking indoors or on brief outdoor trips (like checking the mail or taking out the trash).