The shoe is a super light mesh comfort hiking shoe made of mesh material. They have synthetic soles. They are very comfortable, have a breathable mesh upper and an extremely light sole. Suitable for a variety of occasions, perfect for daily wear, hiking, travel, running, jogging, exercising, working out and other light sports, etc. Great slip-on slippers for indoor and outdoor activities. Breathable upper and durable cushioned outsole for a smooth ride. The ultra-light weight and cushioned outsole provide maximum support and all-day comfort. Adapts to your individual footprint with every step and supports your feet in everyday life. The Flex and Fold technology keeps the foot healthy by stimulating the foot's muscles and nerves, while the unique shape gives the foot complete freedom of movement. These are quality shoes and I give them 5 stars.