1. Material: cloth + rubber 2. It is light and has good breathability, bending resistance, abrasion resistance, perspiration, extensibility and elasticity, soft and hand washable 3. Environmentally friendly microfiber, wear-resistant, impact-resistant, kick-resistant and flexible 4. The shoe mouth is sand-proof and dust-proof, not easy to fall off, easy to put on and take off 5. Breathable fabric is not stuffy, good ductility and abrasion resistance 6. Paste design, easy to adjust and more firm 7. High-quality rubber sole for outdoor climbing, resistant to cold and high temperature 8. The sole has high elasticity, shock absorption, wear resistance and anti-slip 9. Inner width: 4 cm in size 1; 4.5 cm in size 2; 5 cm in size 3; 5.5 cm in size 4; 6 cm in size 5; 6.5 cm in size 6; 7 cm wide, 7.5 cm wide within 8 yards 10. Weight: 1 size 95g; size 2 127g; size 3 148g; size 4 152g; size 5 155g; size 6 182g; size 7 219g; size 8 245g