The Brennan men's shoe is an easygoing slip-on style, with side gussets and a casual moccasin stich. The Brennan's got technology, too: the rubber outsole is made with a durable, ultra-lightweight Phylon material, and a wider design with a SoftWair inner sole for comfort. It's simple. And ready to go with whatever you've got in store for your day. The Brennan is a cemented, sidewall-stitched men's shoe, with a durable-yet-comfortable Dr. Martens sole, with good abrasion and slip resistance. Material: Leather, Rubber.