Imported Synthetic sole Machine Washable - Machine wash COLD; Remove insole and AIR dry (NO dryer use). Barefoot Comfort - Wide toe boxes allow natural splaying of toes for balanced landing and maximum comfort. Deodorizing Insole - Infused with natural Green Tea extracts. EVA/Rubber outsole - Ultra-lightweight, provides maximum flexibility, shock absorption, stability and slip-resistance for safety and comfort. Family/Pedorthist Friendly - With its "hook and loop" closures, removable insoles, long heel counters, and child specific patterns, Tsukihoshi can accommodate customized orthotics and other Pedorthic modifications. With a long and storied existence going back to 1873, Tsukihoshi is one of the largest manufacturers and distributors of childrens footwear in Japan. Tsukihoshi has been collaborating with orthopedic specialists since 1985, perfecting a line of childrens shoes that focuses on the health, protection and comfort of childrens feet. Now, Tsukihoshis line of hyper-functional footwear has reached America. Every Tsukihoshi style is machine washable, anti-bacterial, ultra-lightweight and is designed to not only support but to promote proper foot development. These attributes, along with the brands terrific styling, make Tsukihoshi stand out as a truly unique brand in childrens athletics.