AVIATOR Women's Embroideried Elegant FiveFingers Leather Synthetic sole FOOTBED - Antimicrobial microfiber with EVA insole Breathable and Comfortable Upper:Calfskin/Suede/Microfiber No rain soaked,water brush,exposure,and roasted to avoid upper fracture and retting DO not with acid,alkali and oil exposure,so as to avoid distortion of shoes