Rubber sole 1.The upper uses 3D knitting technology,more breathable. 2.The soft?insoles make the shoes more comfortable to wear, and the special non-slip jelly outsole design makes the shoes last longer. 3.Anti-collision toe cap design,to protect your kids’ toes. 4.Elastic Shoe Mouth,easy to wear and take off,convenient and comfortable. 5.Suitable for outdoor and school. Suitable for sports like Walking,running,hiking,climbing.