The Splitrock CT XT is made with responsible sourced leather and REBOTL Linings made with 40 percent Recycled plastic. This boot is also packed with many other features for all day comfort.-Premium leather from a tannery rated silver for sustaibability-ReBOTL fabric linings made with at least 40 percent recycled plastic-Composite Safety Toe Powered by Carbon Shield technology-Waterproof membrane-Non-Metallic puncture-resistant plate-Moisture wicking lining with anti-microbial treatment for odor control-Anti-Fatigue footbed