Columbia Re-Peak Mid Hiking Bootsmens size 11good used condition some wear on the solessome dirt on the toe areaplease inspect pictures UPPER: Water and stain resistant treatment. Recycled mesh upper with eco-friendly leather overlays and lining. Along with recycled laces and webbings.MIDSOLE: OrthoLite® Eco insole is compromised of 17% of total eco content delivering enhanced breathability and lightweight long term cushioning. Techlite Live™. Our new cushioning is a proprietary compound that delivers high performance underfoot while supporting sustainability. Derived from 70% Bio Based materials it delivers lightweight cushioning and durability all with an eye to circularity.OUTSOLE: Omni-Grip Live™. Columbia proprietary outsole compound delivering exceptional traction results on outdoor surfaces while delivering a positive environmental impact as this compound utilizes 70% bio based natural rubber.