Premium Timberland Leather: By purchasing this product, you are supporting responsible manufacturing of leather through the Leather Working Group. OrthoLite Insoles: Comfort foam insoles long-term cushioning with ultra-breathable material that won't break down or lose cushioning over time, keeping your footwear comfortable and supportive. CORDURA EcoMade Fiber: Made from 100% recycled polyester, CORDURA EcoMade Fiber features a soft, next-to-skin feel and is four times stronger than standard cotton. ReBOTL Material: Products with ReBOTL material contain at least 50% recycled PET (recycled polyethylene terephthalate, the stuff plastic bottles are made of) excepting trace materials. Defender Repellent Systems: Treatment featuring Scotchgard Protector by 3M; Engineered specifically to address the dynamic environmental conditions work footwear may be subjected to, by using powerful triple-action C4 chemistry to repel spills, block stains, and help maintain breathability.