The Timberland Men's Redwood Falls Moc Toe Boots are built to hit the trail and help keep your feet protected in any weather. The upper is made out of Leather from a tannery rated silver for its water, energy, and waste management practices. They have TimberDry™ waterproof membrane or linings to help keep feet dry, made with 50% PET (recycled plastic bottles). They have ReBOTL™ fabric lining that is made of at least 40% recycled materials. The Gripstick™ Rubber outsoles provide dependable traction on both wet and dry surfaces.