... penetration and absorption of water ,breathable .2) Nylon 1000 D ,waterproof .3) Fast eyelets system , non-metal4) ... avoid loosening of lace5) High density U shapse PU inner sock , U shape design for max comfort ... ,anti-microbe.6) Rubber & PU sole , anti-slip ,hard wearing .7) Padded design ... cow leather Desert boot Nylon 1000 D waterproof fabric anti-slip hard wearing Rubber ...