The breathable, sustainable knit upper?of Prop?t?s ?B10 Usher? is made from wood, bamboo and cotton. A removable Ortholite??foam insole provides high-level cushioning, while a second foam insert enables you to customize fit. The super-lightweight outsole of ETPU foam offers a spring-like response to every step. Men?s sizes 8?12, 13, 14, 15 and 16 in 3E and 5E widths.