MBT boots. The color is brown. The size is EU38, UK5, US7-7.5, which is 25.3cm. Brand new, unused. Product Description MBT, originating in Switzerland, is footwear certified by the American Podiatric Medical Association (APMA) as being gentle on the feet. MBT stands for Masai Barefoot Technology, and it focuses on the physical abilities and beautiful posture of the Masai people who walk barefoot on the earth. By wearing them daily, these functional shoes reduce the burden on the soles of the feet, encourage the use of muscles that are not usually used, and improve core balance. A major feature is the patented curved sole structure in various countries. The unique rocker sole recreates the natural instability of walking barefoot on the earth. This instability stimulates the movement of various joints in the feet, activating the muscles needed for posture maintenance, recovery, and awareness of beautiful posture. It also absorbs impact on the feet with high cushioning. Lightweight and breathable mesh makes it versatile for use from jogging to daily wear, and is popular. By incorporating them into your life, walking and daily gait can also become core training. *Individual results may vary. Please consult a doctor if you have any underlying medical conditions before use. Material: Genuine leather