Premium Timberland Leather: By purchasing this product, you are supporting Leather Working Group certified tanneries. OrthoLite Insoles: OrthoLite comfort foam insoles are lightweight, provide moisture transport, antimicrobial function, and long-term cushioning. The ultra-breathable material won't break down or lose cushioning over time, keeping your footwear comfortable and supportive. ReBOTL Material: The ReBOTL material used in Timberland footwear and accessories contains at least 50% recycled PET(recycled polyethylene terephthalate, the stuff plastic bottles are made of). Compression-molded EVA midsole Rubber lug outsole