The Reebok Formidable has an S3 Water resistant leather upper which is ideal for some of the most aggressive working environments. The Formidable safety trainers also have incorporated into them the Floatride Energy foam midsole, which provides superb additional cushioning. The Floatride Energy foam is supportive, highly responsive, and lighter than traditional EVA, giving you a work trainer which is lightweight and easy to wear. Metal Free, Lightweight and ESD rated for high hazard work places, these Reebok safety trainers deliver comfort and protection you can trust.Durable S3 Water Resistant Premium Black Leather UpperConstructed from Metal Free Lightweight ComponentsComfort Enhancing Moisture Wicking Nylon Mesh Inner LiningRemovable EVA Cushion Footbed Insole for all day WearabilityFloatride Energy Midsole is Flexible, Resilient, and Provides Premium Responsive CushioningThe Low Cut Trainer Design offers Increased Freedom of Motion at the AnkleESD Rated for High Hazard