Sliet Slippers for Core Training Natural training through core standing. Only tried on! When you stand with core engagement, most people feel like they're about to fall backward. This is because they usually walk with a forward-leaning posture. Sliet encourages you to shift your body's center of gravity backward, engaging your lower abdomen, hips, and calves, strengthening your core, and shaping your body. * Slimmer lower body through core standing. * The angled sole encourages you to shift your weight backward, training your lower abdomen, hips, and calves, leading to a beautiful standing posture. * The three-dimensional insole fits your feet and is less likely to slip off, reducing foot fatigue. Available colors: Orange and White. With a cute design, it's also recommended as a gift for those who care about their health. Size: 23-24.5cm Materials: Upper/Insole: Synthetic leather, Sole: Polyethylene Made in China