Synthetic sole?CUSHIONING MD SOLE:This mens running shoe uses a cushioning MD sole, it??s EVA secondary foaming technology, which has 30% more cushioning,it can distract 60% of the foot??s pressure during running,make you feel comfortable.?LIGHTWEIGHT DESIGN:Designed with polyester lightweight vamp, and the free tension allows you to enjoy the ultimate barefoot feeling,improve the overall stability and flexibility.?COMFORTABLE EXPERIENCE:It use of ergonomic design,the inside of the shoe is made of a comfortable polyester fabric,the free tension allows you to enjoy the ultimate barefoot feeling.?ANTI-SLIP AND WEARPROOF:Made by EVA +MD outsole,17% performance better than ordinary rubber, which improves wear resistance and grip strength.It is scratch-resistant, non-slip, and effectively supports the heel.?CAMELSPORTS SHOES GUARANTEE: If have any problems with with the quality of our mens sneakers, we will 100% refund. Please without any hesitations to contact us, we will handle it within 24 hours.