Rugged boots are generally water-resistant – but you can completely submerge these in a stream, thanks to seam sealing, an internal membrane that's waterproof and breathable, and sole layers that are bonded without glue. These "Earthkeepers" have serious green cred: The breathable PET lining is made entirely from plastic bottles, the laces are organic cotton, 42 percent of the outsole rubber is recycled, and the (waterproof) leather is from a tannery rated Silver for its eco-friendly water, energy, and waste management systems. [$175; shop.timberland.com]